{
  "schemaVersion": "1.0",
  "title": "American Dynasties",
  "edition": "01",
  "curatedAt": "2026-10-06",
  "scope": "Selective historical network of 15 U.S. families; not a complete genealogy or a ranking of power",
  "families": [
    {
      "id": "adams",
      "name": "Adams",
      "region": "Massachusetts · Quincy",
      "start": 1735,
      "end": 2026,
      "summary": "Presidents, diplomacy and historical scholarship across several generations; this selection begins with John and Abigail.",
      "sourceIds": [
        "src-ne-john-adams",
        "src-ne-cfa",
        "src-ne-henry-adams"
      ]
    },
    {
      "id": "cabot",
      "name": "Cabot",
      "region": "Massachusetts · Boston / Brookline",
      "start": 1752,
      "end": 2026,
      "summary": "Commerce, public office and civic networks; women’s organizational work appears alongside the familiar political surname.",
      "sourceIds": [
        "src-ne-cabot-congress",
        "src-ne-cabot-papers"
      ]
    },
    {
      "id": "lowell",
      "name": "Lowell",
      "region": "Massachusetts · Boston / Waltham",
      "start": 1639,
      "end": 2026,
      "summary": "A colonial family later prominent in textile capital, public education and literature. Harvard influence included religious and racial exclusion.",
      "sourceIds": [
        "src-ne-bmc",
        "src-ne-lowell-institute",
        "src-ne-amy-lowell",
        "src-ne-lowell-discrimination",
        "src-ne-percival-colonial"
      ]
    },
    {
      "id": "lodge",
      "name": "Lodge",
      "region": "Massachusetts · Boston / Nahant",
      "start": 1850,
      "end": 2026,
      "summary": "A Cabot-connected family of politicians, diplomats and a poet, represented through three generations.",
      "sourceIds": [
        "src-ne-lodge-papers",
        "src-ne-lodge-senate"
      ]
    },
    {
      "id": "roosevelt",
      "name": "Roosevelt",
      "region": "New York · Oyster Bay / Hyde Park",
      "start": 1649,
      "end": 2026,
      "summary": "Colonial Dutch origins precede distinct New York branches, joined by Eleanor and Franklin’s marriage. Public service, wealth and philanthropy intersect.",
      "sourceIds": [
        "src-ne-tr-sr",
        "src-ne-eleanor",
        "src-ne-fdr",
        "src-ne-sara",
        "src-ne-roosevelt-genealogy",
        "src-ne-roosevelt-origin"
      ]
    },
    {
      "id": "rockefeller",
      "name": "Rockefeller",
      "region": "New York / Ohio",
      "start": 1839,
      "end": 2026,
      "summary": "Oil wealth supported multigenerational philanthropy, museum patronage, and public office.",
      "sourceIds": [
        "src-ca-rockefeller-sr",
        "src-ca-nelson-rockefeller",
        "src-ca-abby-rockefeller"
      ],
      "dateBasis": "Window begins with the earliest person sampled here; 2026 is this edition, not a claim of continuing power."
    },
    {
      "id": "du-pont",
      "name": "Du Pont",
      "region": "Delaware",
      "start": 1771,
      "end": 2026,
      "summary": "The powder business and its descendants shaped Delaware industry and collecting.",
      "sourceIds": [
        "src-ca-hagley-family",
        "src-ca-winterthur-genealogy"
      ],
      "dateBasis": "Window begins with the earliest person sampled here; 2026 is this edition, not a claim of continuing power."
    },
    {
      "id": "mellon",
      "name": "Mellon",
      "region": "Pittsburgh / Washington",
      "start": 1813,
      "end": 2026,
      "summary": "Banking and industrial fortunes financed major national art collections.",
      "sourceIds": [
        "src-ca-andrew-mellon",
        "src-ca-nga-history"
      ],
      "dateBasis": "Window begins with the earliest person sampled here; 2026 is this edition, not a claim of continuing power."
    },
    {
      "id": "astor",
      "name": "Astor",
      "region": "New York",
      "start": 1763,
      "end": 2026,
      "summary": "Fur trading and property wealth supported libraries and prominent social households.",
      "sourceIds": [
        "src-ca-astor-papers",
        "src-ca-astor-library",
        "src-ca-caroline-astor"
      ],
      "dateBasis": "Window begins with the earliest person sampled here; 2026 is this edition, not a claim of continuing power."
    },
    {
      "id": "vanderbilt",
      "name": "Vanderbilt",
      "region": "New York",
      "start": 1794,
      "end": 2026,
      "summary": "Transportation fortunes passed through several generations; Gertrude established an art museum.",
      "sourceIds": [
        "src-ca-vanderbilt-archives",
        "src-ca-whitney-history"
      ],
      "dateBasis": "Window begins with the earliest person sampled here; 2026 is this edition, not a claim of continuing power."
    },
    {
      "id": "whitney",
      "name": "Whitney",
      "region": "New York",
      "start": 1841,
      "end": 2026,
      "summary": "Public office, collecting, and a Vanderbilt marriage connect this selected branch.",
      "sourceIds": [
        "src-ca-william-whitney",
        "src-ca-harry-whitney"
      ],
      "dateBasis": "Window begins with the earliest person sampled here; 2026 is this edition, not a claim of continuing power."
    },
    {
      "id": "harriman",
      "name": "Harriman",
      "region": "New York",
      "start": 1848,
      "end": 2026,
      "summary": "Railroad enterprise, banking, diplomacy, and civic organizing shaped successive generations.",
      "sourceIds": [
        "src-ca-bbh-history",
        "src-ca-harriman-papers",
        "src-ca-mary-harriman"
      ],
      "dateBasis": "Window begins with the earliest person sampled here; 2026 is this edition, not a claim of continuing power."
    },
    {
      "id": "kennedy",
      "name": "Kennedy",
      "region": "Massachusetts · Boston / Hyannis Port",
      "start": 1888,
      "end": 2026,
      "summary": "An Irish Catholic family whose business wealth supported political careers and disability advocacy; distinct from the older Yankee Brahmin milieu.",
      "sourceIds": [
        "src-ne-joseph-kennedy",
        "src-ne-jfk",
        "src-ne-eunice"
      ]
    },
    {
      "id": "bush",
      "name": "Bush",
      "region": "Connecticut / Texas",
      "start": 1895,
      "end": 2026,
      "summary": "Banking and Senate service preceded two presidents and a Florida governor.",
      "sourceIds": [
        "src-ca-bbh-history",
        "src-ca-ghw-house",
        "src-ca-gw-bush",
        "src-ca-jeb-bush"
      ],
      "dateBasis": "Window begins with the earliest person sampled here; 2026 is this edition, not a claim of continuing power."
    },
    {
      "id": "walker",
      "name": "Walker",
      "region": "St. Louis / Connecticut",
      "start": 1875,
      "end": 2026,
      "summary": "George Herbert Walker’s daughter Dorothy married into the Bush family.",
      "sourceIds": [
        "src-ca-walker-usga",
        "src-ca-bush-genealogy"
      ],
      "dateBasis": "Window begins with the earliest person sampled here; 2026 is this edition, not a claim of continuing power."
    }
  ],
  "nodes": [
    {
      "id": "john-adams",
      "label": "John Adams",
      "kind": "person",
      "familyId": "adams",
      "start": 1735,
      "end": 1826,
      "summary": "Second U.S. president; lawyer and diplomat.",
      "sourceIds": [
        "src-ne-john-adams"
      ],
      "locator": "Biography heading; Harvard paragraph; presidential election and retirement sections."
    },
    {
      "id": "abigail-adams",
      "label": "Abigail Adams",
      "kind": "person",
      "familyId": "adams",
      "start": 1744,
      "end": 1818,
      "summary": "Correspondent, political adviser and manager of family finances.",
      "sourceIds": [
        "src-ne-abigail-adams"
      ],
      "locator": "Biography opening; marriage and household paragraphs; final-years section."
    },
    {
      "id": "john-quincy-adams",
      "label": "John Quincy Adams",
      "kind": "person",
      "familyId": "adams",
      "start": 1767,
      "end": 1848,
      "summary": "Sixth U.S. president, diplomat and antislavery congressman.",
      "sourceIds": [
        "src-ne-jqa"
      ],
      "locator": "Heading; Early Life; President of the Whole Nation; post-presidency."
    },
    {
      "id": "louisa-catherine-adams",
      "label": "Louisa Catherine Adams",
      "kind": "person",
      "familyId": "adams",
      "start": 1775,
      "end": 1852,
      "summary": "Diplomatic hostess, writer and first lady.",
      "sourceIds": [
        "src-ne-louisa-adams"
      ],
      "locator": "Biography heading; courtship and diplomatic-life paragraphs."
    },
    {
      "id": "charles-francis-adams",
      "label": "Charles Francis Adams",
      "kind": "person",
      "familyId": "adams",
      "start": 1807,
      "end": 1886,
      "summary": "Diplomat during the Civil War and editor of family papers.",
      "sourceIds": [
        "src-ne-cfa"
      ],
      "locator": "Birth/parents paragraph; Britain mission; concluding death paragraph."
    },
    {
      "id": "henry-adams",
      "label": "Henry Adams",
      "kind": "person",
      "familyId": "adams",
      "start": 1838,
      "end": 1918,
      "summary": "Historian, author and fourth-generation Adams public intellectual.",
      "sourceIds": [
        "src-ne-henry-adams"
      ],
      "locator": "Biography heading; birth and parents; Harvard appointment."
    },
    {
      "id": "george-cabot",
      "label": "George Cabot",
      "kind": "person",
      "familyId": "cabot",
      "start": 1752,
      "end": 1823,
      "summary": "Merchant and Massachusetts senator; Henry Cabot Lodge’s great-grandfather.",
      "sourceIds": [
        "src-ne-cabot-congress",
        "src-ne-lodge-senate"
      ],
      "locator": "Congress directory entry CABOT, George; Senate Lodge biography, second paragraph."
    },
    {
      "id": "elizabeth-cabot",
      "label": "Elizabeth Rogers Mason Cabot",
      "kind": "person",
      "familyId": "cabot",
      "start": 1834,
      "end": 1920,
      "summary": "Diarist and civic organizer active in women’s educational associations.",
      "sourceIds": [
        "src-ne-cabot-papers"
      ],
      "locator": "Biographical Sketches: Elizabeth Rogers Mason Cabot."
    },
    {
      "id": "walter-cabot",
      "label": "Walter Channing Cabot",
      "kind": "person",
      "familyId": "cabot",
      "start": 1829,
      "end": 1904,
      "summary": "Harvard graduate, civil-engineering student and farm manager.",
      "sourceIds": [
        "src-ne-cabot-papers"
      ],
      "locator": "Biographical Sketches: Walter Channing Cabot."
    },
    {
      "id": "henry-cabot-lodge",
      "label": "Henry Cabot Lodge",
      "kind": "person",
      "familyId": "lodge",
      "start": 1850,
      "end": 1924,
      "summary": "Massachusetts senator, historian and member of Boston’s old elite.",
      "sourceIds": [
        "src-ne-lodge-senate",
        "src-ne-lodge-papers"
      ],
      "locator": "Senate biography opening; Phillips Library Biographical Sketch."
    },
    {
      "id": "george-cabot-lodge",
      "label": "George Cabot Lodge",
      "kind": "person",
      "familyId": "lodge",
      "start": 1873,
      "end": 1909,
      "summary": "Poet, son of Senator Henry Cabot Lodge.",
      "sourceIds": [
        "src-ne-lodge-papers"
      ],
      "locator": "Biographical Sketch: Henry Cabot Lodge’s children."
    },
    {
      "id": "henry-cabot-lodge-jr",
      "label": "Henry Cabot Lodge Jr.",
      "kind": "person",
      "familyId": "lodge",
      "start": 1902,
      "end": 1985,
      "summary": "Senator, U.N. ambassador and 1960 vice-presidential candidate.",
      "sourceIds": [
        "src-ne-lodge-papers",
        "src-ne-lodge-campaign"
      ],
      "locator": "Biographical Sketch: Henry Cabot Lodge Jr.; Who Was Henry Cabot Lodge, Jr.?"
    },
    {
      "id": "francis-cabot-lowell",
      "label": "Francis Cabot Lowell",
      "kind": "person",
      "familyId": "lowell",
      "start": 1775,
      "end": 1817,
      "summary": "Textile entrepreneur and Boston Manufacturing Company investor.",
      "sourceIds": [
        "src-ne-bmc"
      ],
      "locator": "Biographical / Historical Note: founding investors."
    },
    {
      "id": "john-lowell-jr",
      "label": "John Lowell Jr.",
      "kind": "person",
      "familyId": "lowell",
      "start": 1799,
      "end": 1836,
      "summary": "Merchant whose bequest established free public lectures.",
      "sourceIds": [
        "src-ne-lowell-institute",
        "src-ne-john-lowell-dates"
      ],
      "locator": "Our History opening paragraphs; Getty ULAN biography."
    },
    {
      "id": "john-amory-lowell",
      "label": "John Amory Lowell",
      "kind": "person",
      "familyId": "lowell",
      "start": 1798,
      "end": 1881,
      "summary": "Businessman, Harvard Corporation member and first Lowell Institute trustee.",
      "sourceIds": [
        "src-ne-lowell-archives",
        "src-ne-lowell-institute"
      ],
      "locator": "Biographical Note, grandfather paragraph; Our History, July 1836 trustee appointment."
    },
    {
      "id": "augustus-lowell",
      "label": "Augustus Lowell",
      "kind": "person",
      "familyId": "lowell",
      "start": 1830,
      "end": 1900,
      "summary": "Banker, financier and Lowell Institute trustee.",
      "sourceIds": [
        "src-ne-lowell-archives",
        "src-ne-amy-lowell",
        "src-ne-lowell-genealogy",
        "src-ne-lowell-academy"
      ],
      "locator": "Biographical Note, father paragraph; Amy Lowell biography, parents’ deaths; Lowell pedigree. American Academy archive, creator authority entry Lowell, Augustus, 1830–1900."
    },
    {
      "id": "abbott-lawrence-lowell",
      "label": "Abbott Lawrence Lowell",
      "kind": "person",
      "familyId": "lowell",
      "start": 1856,
      "end": 1943,
      "summary": "Harvard president, 1909–1933; promoted growth while enforcing exclusionary admissions and housing policies.",
      "sourceIds": [
        "src-ne-lowell-archives",
        "src-ne-lowell-discrimination"
      ],
      "locator": "Biographical Note; chapter opening on discriminatory admissions and housing."
    },
    {
      "id": "amy-lowell",
      "label": "Amy Lowell",
      "kind": "person",
      "familyId": "lowell",
      "start": 1874,
      "end": 1925,
      "summary": "Imagist poet, critic and civic supporter; excluded from her brothers’ Harvard opportunities.",
      "sourceIds": [
        "src-ne-amy-lowell"
      ],
      "locator": "Biography paragraphs on birth, education, public work and death."
    },
    {
      "id": "theodore-roosevelt-sr",
      "label": "Theodore Roosevelt Sr.",
      "kind": "person",
      "familyId": "roosevelt",
      "start": 1831,
      "end": 1878,
      "summary": "Merchant and philanthropist; father of Theodore and Elliott.",
      "sourceIds": [
        "src-ne-tr-sr"
      ],
      "locator": "Quick Facts; family business; four children and charities."
    },
    {
      "id": "theodore-roosevelt",
      "label": "Theodore Roosevelt",
      "kind": "person",
      "familyId": "roosevelt",
      "start": 1858,
      "end": 1919,
      "summary": "Twenty-sixth president; linked to the Oyster Bay branch.",
      "sourceIds": [
        "src-ne-tr"
      ],
      "locator": "Opening and Presidency sections."
    },
    {
      "id": "elliott-roosevelt",
      "label": "Elliott Roosevelt",
      "kind": "person",
      "familyId": "roosevelt",
      "start": 1860,
      "end": 1894,
      "summary": "Theodore’s brother and Eleanor Roosevelt’s father.",
      "sourceIds": [
        "src-ne-elliott"
      ],
      "locator": "Quick Facts; first biography paragraph."
    },
    {
      "id": "anna-hall-roosevelt",
      "label": "Anna Hall Roosevelt",
      "kind": "person",
      "familyId": "roosevelt",
      "start": 1863,
      "end": 1892,
      "summary": "New York society figure and Eleanor Roosevelt’s mother.",
      "sourceIds": [
        "src-ne-anna-hall"
      ],
      "locator": "Quick Facts; marriage and three children."
    },
    {
      "id": "eleanor-roosevelt",
      "label": "Eleanor Roosevelt",
      "kind": "person",
      "familyId": "roosevelt",
      "start": 1884,
      "end": 1962,
      "summary": "First lady, writer and U.N. human-rights advocate.",
      "sourceIds": [
        "src-ne-eleanor"
      ],
      "locator": "Quick Facts; The Early Years; After the White House."
    },
    {
      "id": "franklin-roosevelt",
      "label": "Franklin D. Roosevelt",
      "kind": "person",
      "familyId": "roosevelt",
      "start": 1882,
      "end": 1945,
      "summary": "Thirty-second president, associated with the Hyde Park branch.",
      "sourceIds": [
        "src-ne-fdr"
      ],
      "locator": "Quick Facts; The Early Years; The Presidency."
    },
    {
      "id": "sara-roosevelt",
      "label": "Sara Delano Roosevelt",
      "kind": "person",
      "familyId": "roosevelt",
      "start": 1854,
      "end": 1941,
      "summary": "Franklin’s mother; the Delano fortune included China’s opium trade.",
      "sourceIds": [
        "src-ne-sara"
      ],
      "locator": "Opening biography; Franklin’s birth; final years."
    },
    {
      "id": "joseph-kennedy",
      "label": "Joseph P. Kennedy",
      "kind": "person",
      "familyId": "kennedy",
      "start": 1888,
      "end": 1969,
      "summary": "Businessman, financial regulator and ambassador to Britain.",
      "sourceIds": [
        "src-ne-joseph-kennedy"
      ],
      "locator": "Early Years; Politics and Government; concluding death paragraph."
    },
    {
      "id": "rose-kennedy",
      "label": "Rose Fitzgerald Kennedy",
      "kind": "person",
      "familyId": "kennedy",
      "start": 1890,
      "end": 1995,
      "summary": "Family chronicler, campaign participant and advocate of disability research.",
      "sourceIds": [
        "src-ne-rose-kennedy"
      ],
      "locator": "Rose Kennedy: In Her Own Words profile, birth/marriage/children/death paragraph."
    },
    {
      "id": "john-f-kennedy",
      "label": "John F. Kennedy",
      "kind": "person",
      "familyId": "kennedy",
      "start": 1917,
      "end": 1963,
      "summary": "Thirty-fifth president; previously Massachusetts senator.",
      "sourceIds": [
        "src-ne-jfk"
      ],
      "locator": "Growing Up in the Kennedy Family; presidency and death sections."
    },
    {
      "id": "robert-kennedy",
      "label": "Robert F. Kennedy",
      "kind": "person",
      "familyId": "kennedy",
      "start": 1925,
      "end": 1968,
      "summary": "Attorney general, New York senator and presidential candidate.",
      "sourceIds": [
        "src-ne-rfk"
      ],
      "locator": "Opening; Harvard degree; Senate campaign and assassination paragraphs."
    },
    {
      "id": "eunice-kennedy-shriver",
      "label": "Eunice Kennedy Shriver",
      "kind": "person",
      "familyId": "kennedy",
      "start": 1921,
      "end": 2009,
      "summary": "Founded Special Olympics and led disability advocacy through family philanthropy.",
      "sourceIds": [
        "src-ne-eunice"
      ],
      "locator": "Opening; Foundation, Camp Shriver and 1968 Games paragraphs; death."
    },
    {
      "id": "edward-kennedy",
      "label": "Edward M. Kennedy",
      "kind": "person",
      "familyId": "kennedy",
      "start": 1932,
      "end": 2009,
      "summary": "Massachusetts senator, 1962–2009.",
      "sourceIds": [
        "src-ne-ted"
      ],
      "locator": "Biographical quick facts; 1962 chronology; concluding obituary."
    },
    {
      "id": "harvard",
      "label": "Harvard University",
      "kind": "institution",
      "start": 1636,
      "end": null,
      "summary": "Education and institutional service connect several otherwise distinct families.",
      "sourceIds": [
        "src-ne-harvard"
      ],
      "locator": "Frequently asked history: When was Harvard founded?"
    },
    {
      "id": "us-presidency",
      "label": "U.S. Presidency",
      "kind": "institution",
      "start": 1789,
      "end": null,
      "summary": "Elected federal office, represented here through specific terms of service.",
      "sourceIds": [
        "src-ne-presidency"
      ],
      "locator": "Paragraph on Washington’s oath of office, April 30, 1789."
    },
    {
      "id": "us-senate",
      "label": "U.S. Senate",
      "kind": "institution",
      "start": 1789,
      "end": null,
      "summary": "Federal legislative chamber; edges record individual service, not hereditary succession.",
      "sourceIds": [
        "src-ne-senate"
      ],
      "locator": "Class System: first session of Congress in 1789."
    },
    {
      "id": "lowell-institute",
      "label": "Lowell Institute",
      "kind": "institution",
      "start": 1836,
      "end": null,
      "summary": "A bequest-funded institution supporting free lectures and public education.",
      "sourceIds": [
        "src-ne-lowell-institute"
      ],
      "locator": "Our History opening; The Lowell Institute Is Born, 1836."
    },
    {
      "id": "boston-manufacturing-company",
      "label": "Boston Manufacturing Company",
      "kind": "institution",
      "start": 1813,
      "end": 1930,
      "summary": "Waltham textile enterprise established by Boston Associates investors.",
      "sourceIds": [
        "src-ne-bmc",
        "src-ne-bmc-closure"
      ],
      "locator": "Harvard Biographical / Historical Note; Smithsonian description, closure in 1930."
    },
    {
      "id": "special-olympics",
      "label": "Special Olympics",
      "kind": "institution",
      "start": 1968,
      "end": null,
      "summary": "Sports training and competition for people with intellectual disabilities.",
      "sourceIds": [
        "src-ne-eunice"
      ],
      "locator": "1968 Games and December incorporation paragraphs."
    },
    {
      "id": "boston-brahmins",
      "label": "Boston Brahmins",
      "kind": "social-circle",
      "start": 1860,
      "end": null,
      "summary": "A historical label for parts of Boston’s established elite. Connections are editorial groupings, not legal status, formal membership or proof of coordinated power.",
      "sourceIds": [
        "src-ne-brahmins",
        "src-ne-lodge-senate",
        "src-ne-lowell-archives",
        "src-ne-brahmin-term"
      ],
      "locator": "Historical Society overview; Senate Lodge biography; Harvard Lowell Biographical Note. Harvard DASH essay, opening on Holmes’s 1860 article."
    },
    {
      "id": "percival-lowle",
      "label": "Percival Lowle",
      "kind": "person",
      "familyId": "lowell",
      "start": 1639,
      "end": 1664,
      "dateLabel": "In New England from 1639 · died 1664",
      "dateBasis": "Start is documented New England arrival, not birth; AAS bibliography gives the older life dates 1571–1664.",
      "summary": "Colonial merchant and poet, in New England from 1639. A family-origin anchor; intervening generations are not represented here.",
      "sourceIds": [
        "src-ne-percival-colonial",
        "src-ne-brahmin-term"
      ],
      "locator": "AAS Proceedings, printed page 442: LOWELL, PERCIVAL; Shinagel essay’s Lowell family history."
    },
    {
      "id": "claes-van-rosenvelt",
      "label": "Claes Martenszen van Rosenvelt",
      "kind": "person",
      "familyId": "roosevelt",
      "start": 1649,
      "end": 1659,
      "dateLabel": "Active 1649 · died 1659",
      "dateBasis": "Start follows Library of Congress’s floruit heading, not a birth date; FDR Library describes arrival around 1650; NPS supplies death year.",
      "summary": "Dutch immigrant and ancestor of the American Roosevelts. Arrival is dated around 1650; the birthplace and birth year remain uncertain.",
      "sourceIds": [
        "src-ne-roosevelt-genealogy",
        "src-ne-isaac-roosevelt",
        "src-ne-roosevelt-origin"
      ],
      "locator": "LOC catalog heading Claes Martenszen Van Rosenvelt, fl.1649; NPS Isaac Roosevelt final ancestry paragraph; FDR Library origin paragraph."
    },
    {
      "id": "john-d-rockefeller-sr",
      "label": "John D. Rockefeller Sr.",
      "kind": "person",
      "familyId": "rockefeller",
      "start": 1839,
      "end": 1937,
      "summary": "Standard Oil organizer and philanthropist.",
      "sourceIds": [
        "src-ca-rockefeller-sr"
      ],
      "locator": "Biography heading; Standard Oil and philanthropy sections.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "laura-spelman-rockefeller",
      "label": "Laura Spelman Rockefeller",
      "kind": "person",
      "familyId": "rockefeller",
      "start": 1839,
      "end": 1915,
      "summary": "Educator whose philanthropic interests included women’s education.",
      "sourceIds": [
        "src-ca-laura-rockefeller"
      ],
      "locator": "Biography heading; education, marriage, and philanthropy paragraphs.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "john-d-rockefeller-jr",
      "label": "John D. Rockefeller Jr.",
      "kind": "person",
      "familyId": "rockefeller",
      "start": 1874,
      "end": 1960,
      "summary": "Philanthropist and son of John D. and Laura Rockefeller.",
      "sourceIds": [
        "src-ca-rockefeller-jr"
      ],
      "locator": "Biography heading; family and philanthropy sections.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "abby-aldrich-rockefeller",
      "label": "Abby Aldrich Rockefeller",
      "kind": "person",
      "familyId": "rockefeller",
      "start": 1874,
      "end": 1948,
      "summary": "Collector and cofounder of the Museum of Modern Art.",
      "sourceIds": [
        "src-ca-abby-rockefeller",
        "src-ca-moma"
      ],
      "locator": "Archive biography heading; MoMA exhibition introduction, founding in 1929.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "nelson-rockefeller",
      "label": "Nelson A. Rockefeller",
      "kind": "person",
      "familyId": "rockefeller",
      "start": 1908,
      "end": 1979,
      "summary": "New York governor and United States vice president.",
      "sourceIds": [
        "src-ca-nelson-rockefeller"
      ],
      "locator": "Biography heading; gubernatorial and vice-presidential service.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "e-i-du-pont",
      "label": "Éleuthère Irénée du Pont",
      "kind": "person",
      "familyId": "du-pont",
      "start": 1771,
      "end": 1834,
      "summary": "French immigrant who established a Delaware powder business.",
      "sourceIds": [
        "src-ca-winterthur-genealogy",
        "src-ca-hagley-family"
      ],
      "locator": "Winterthur brochure, page 1 genealogy; Hagley E. I. du Pont section.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "henry-du-pont",
      "label": "Henry du Pont",
      "kind": "person",
      "familyId": "du-pont",
      "start": 1812,
      "end": 1889,
      "summary": "Third president of the DuPont company.",
      "sourceIds": [
        "src-ca-hagley-family",
        "src-ca-henry-dupont-dates"
      ],
      "locator": "The du Ponts, Henry section; William du Pont Jr. biography, grandfather Henry’s dates.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "henry-algernon-du-pont",
      "label": "Henry Algernon du Pont",
      "kind": "person",
      "familyId": "du-pont",
      "start": 1838,
      "end": 1926,
      "summary": "Civil War officer and United States senator from Delaware.",
      "sourceIds": [
        "src-ca-winterthur-genealogy",
        "src-ca-winterthur-archives"
      ],
      "locator": "Brochure genealogy; Downs Collection entry 658, Henry Algernon du Pont papers.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "henry-francis-du-pont",
      "label": "Henry Francis du Pont",
      "kind": "person",
      "familyId": "du-pont",
      "start": 1880,
      "end": 1969,
      "summary": "Collector and horticulturist who established Winterthur as a museum.",
      "sourceIds": [
        "src-ca-winterthur-genealogy",
        "src-ca-winterthur-archives"
      ],
      "locator": "Brochure genealogy and A Grand Vision; Downs Collection entry 659.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "ruth-wales-du-pont",
      "label": "Ruth Wales du Pont",
      "kind": "person",
      "familyId": "du-pont",
      "start": 1889,
      "end": 1967,
      "summary": "Musician and preservation advocate; married Henry Francis du Pont.",
      "sourceIds": [
        "src-ca-winterthur-genealogy",
        "src-ca-winterthur-archives"
      ],
      "locator": "Brochure genealogy; Downs Collection entry 660, Ruth Wales du Pont papers.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "thomas-mellon",
      "label": "Thomas Mellon",
      "kind": "person",
      "familyId": "mellon",
      "start": 1813,
      "end": 1908,
      "summary": "Pittsburgh banker and father of Andrew Mellon.",
      "sourceIds": [
        "src-ca-andrew-mellon"
      ],
      "locator": "Family origins paragraph names Thomas Mellon and gives 1813–1908.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "andrew-mellon",
      "label": "Andrew W. Mellon",
      "kind": "person",
      "familyId": "mellon",
      "start": 1855,
      "end": 1937,
      "summary": "Financier and Treasury secretary who funded a national art gallery.",
      "sourceIds": [
        "src-ca-mellon-nps",
        "src-ca-andrew-mellon"
      ],
      "locator": "NPS biography title; National Gallery biography, public service and gallery paragraphs.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "ailsa-mellon-bruce",
      "label": "Ailsa Mellon Bruce",
      "kind": "person",
      "familyId": "mellon",
      "start": 1901,
      "end": 1969,
      "summary": "Art patron who helped fund the National Gallery’s East Building.",
      "sourceIds": [
        "src-ca-andrew-mellon",
        "src-ca-nga-history"
      ],
      "locator": "Mellon biography, children paragraph; Gallery history, 1967 entry.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "paul-mellon",
      "label": "Paul Mellon",
      "kind": "person",
      "familyId": "mellon",
      "start": 1907,
      "end": 1999,
      "summary": "Collector and National Gallery trustee and benefactor.",
      "sourceIds": [
        "src-ca-andrew-mellon",
        "src-ca-nga-history"
      ],
      "locator": "Mellon biography, children paragraph; Gallery history, 1967 and 1999 entries.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "john-jacob-astor",
      "label": "John Jacob Astor",
      "kind": "person",
      "familyId": "astor",
      "start": 1763,
      "end": 1848,
      "summary": "Fur trader and property investor whose bequest funded a library.",
      "sourceIds": [
        "src-ca-astor-papers",
        "src-ca-astor-library"
      ],
      "locator": "William B. Astor papers, biographical note; Astor Library records, history.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "william-backhouse-astor-sr",
      "label": "William Backhouse Astor Sr.",
      "kind": "person",
      "familyId": "astor",
      "start": 1792,
      "end": 1875,
      "summary": "Property investor and Astor Library benefactor.",
      "sourceIds": [
        "src-ca-astor-papers",
        "src-ca-astor-library"
      ],
      "locator": "William B. Astor papers, biographical note; Astor Library records, trustees.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "william-backhouse-astor-jr",
      "label": "William Backhouse Astor Jr.",
      "kind": "person",
      "familyId": "astor",
      "start": 1829,
      "end": 1892,
      "summary": "Son of William Backhouse Astor Sr.; married Caroline Schermerhorn.",
      "sourceIds": [
        "src-ca-astor-papers",
        "src-ca-caroline-astor"
      ],
      "locator": "William B. Astor papers, biographical note; Chronicles chapter III, entry 111, Caroline.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "caroline-schermerhorn-astor",
      "label": "Caroline Schermerhorn Astor",
      "kind": "person",
      "familyId": "astor",
      "start": 1830,
      "end": 1908,
      "summary": "New York society hostess and wife of William Astor.",
      "sourceIds": [
        "src-ca-caroline-astor"
      ],
      "locator": "Chronicles chapter III, entry 111, daughter Caroline and following biographical paragraph.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "cornelius-vanderbilt",
      "label": "Cornelius Vanderbilt",
      "kind": "person",
      "familyId": "vanderbilt",
      "start": 1794,
      "end": 1877,
      "summary": "Transportation entrepreneur, known as the Commodore.",
      "sourceIds": [
        "src-ca-vanderbilt-archives",
        "src-ca-vanderbilt-tree"
      ],
      "locator": "Collection biographical history; NPS family tree, first generation.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "william-henry-vanderbilt",
      "label": "William Henry Vanderbilt",
      "kind": "person",
      "familyId": "vanderbilt",
      "start": 1821,
      "end": 1885,
      "summary": "Son and business successor of Cornelius Vanderbilt.",
      "sourceIds": [
        "src-ca-vanderbilt-archives",
        "src-ca-vanderbilt-tree"
      ],
      "locator": "Collection biographical history; NPS family tree, William Henry I.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "cornelius-vanderbilt-ii",
      "label": "Cornelius Vanderbilt II",
      "kind": "person",
      "familyId": "vanderbilt",
      "start": 1843,
      "end": 1899,
      "summary": "William Henry Vanderbilt’s eldest son and Gertrude’s father.",
      "sourceIds": [
        "src-ca-vanderbilt-archives",
        "src-ca-vanderbilt-tree",
        "src-ca-gertrude-whitney"
      ],
      "locator": "Collection biographical history; NPS tree, Cornelius II; Whitney artist biography.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "gertrude-vanderbilt-whitney",
      "label": "Gertrude Vanderbilt Whitney",
      "kind": "person",
      "familyId": "vanderbilt",
      "start": 1875,
      "end": 1942,
      "summary": "Sculptor, art patron, and founder of the Whitney Museum.",
      "sourceIds": [
        "src-ca-gertrude-whitney",
        "src-ca-whitney-history"
      ],
      "locator": "Artist biography heading; museum history, founding and opening paragraph.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "william-collins-whitney",
      "label": "William Collins Whitney",
      "kind": "person",
      "familyId": "whitney",
      "start": 1841,
      "end": 1904,
      "summary": "Lawyer and secretary of the Navy under Grover Cleveland.",
      "sourceIds": [
        "src-ca-william-whitney"
      ],
      "locator": "Navy Department Library biographical entry, birth, education, office, and death.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "harry-payne-whitney",
      "label": "Harry Payne Whitney",
      "kind": "person",
      "familyId": "whitney",
      "start": 1872,
      "end": 1930,
      "summary": "Museum expedition patron and husband of Gertrude Vanderbilt Whitney.",
      "sourceIds": [
        "src-ca-harry-whitney"
      ],
      "locator": "AMNH authority biography, parents, marriage, and expedition sponsorship.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "edward-henry-harriman",
      "label": "Edward Henry Harriman",
      "kind": "person",
      "familyId": "harriman",
      "start": 1848,
      "end": 1909,
      "summary": "Railroad entrepreneur and father of Averell and Mary Harriman.",
      "sourceIds": [
        "src-ca-mary-harriman",
        "src-ca-bbh-history"
      ],
      "locator": "Smithsonian biographical note; BBH timeline, 1876 and 1919 entries.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "w-averell-harriman",
      "label": "W. Averell Harriman",
      "kind": "person",
      "familyId": "harriman",
      "start": 1891,
      "end": 1986,
      "summary": "Banker, diplomat, and governor of New York.",
      "sourceIds": [
        "src-ca-harriman-papers"
      ],
      "locator": "Collection summary; Biographical Note, pages 6–7.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "mary-harriman-rumsey",
      "label": "Mary Harriman Rumsey",
      "kind": "person",
      "familyId": "harriman",
      "start": 1881,
      "end": 1934,
      "summary": "Junior League founder and civic organizer.",
      "sourceIds": [
        "src-ca-mary-harriman"
      ],
      "locator": "Smithsonian collection biographical note, parentage and Junior League founding.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "prescott-bush",
      "label": "Prescott Bush",
      "kind": "person",
      "familyId": "bush",
      "start": 1895,
      "end": 1972,
      "summary": "Banker and United States senator from Connecticut.",
      "sourceIds": [
        "src-ca-bush-genealogy",
        "src-ca-senators",
        "src-ca-bbh-history"
      ],
      "locator": "Genealogy ancestor 2; Senate chronological list, Bush entry; BBH timeline, 1931.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "george-h-w-bush",
      "label": "George H. W. Bush",
      "kind": "person",
      "familyId": "bush",
      "start": 1924,
      "end": 2018,
      "summary": "Forty-first president of the United States.",
      "sourceIds": [
        "src-ca-ghw-house",
        "src-ca-ghw-library"
      ],
      "locator": "House biographical entry; Presidential Library life and presidential service.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "barbara-pierce-bush",
      "label": "Barbara Pierce Bush",
      "kind": "person",
      "familyId": "bush",
      "start": 1925,
      "end": 2018,
      "summary": "First lady and literacy advocate.",
      "sourceIds": [
        "src-ca-barbara-bush"
      ],
      "locator": "Biography heading and literacy advocacy section.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "george-w-bush",
      "label": "George W. Bush",
      "kind": "person",
      "familyId": "bush",
      "start": 1946,
      "end": null,
      "summary": "Forty-third president of the United States.",
      "sourceIds": [
        "src-ca-gw-bush"
      ],
      "locator": "Early Life and Career, birth; Political and Post-Presidential sections.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "jeb-bush",
      "label": "Jeb Bush",
      "kind": "person",
      "familyId": "bush",
      "start": 1953,
      "end": null,
      "summary": "John Ellis Bush, governor of Florida from 1999 to 2007.",
      "sourceIds": [
        "src-ca-jeb-bush"
      ],
      "locator": "Florida governor biographical entry, birth and term dates.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "george-herbert-walker",
      "label": "George Herbert Walker",
      "kind": "person",
      "familyId": "walker",
      "start": 1875,
      "end": 1953,
      "summary": "St. Louis financier and Walker Cup namesake.",
      "sourceIds": [
        "src-ca-walker-usga",
        "src-ca-bush-genealogy"
      ],
      "locator": "USGA article, Walker biography; genealogy ancestor 6.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "dorothy-walker-bush",
      "label": "Dorothy Walker Bush",
      "kind": "person",
      "familyId": "walker",
      "start": 1901,
      "end": 1992,
      "summary": "Daughter of George Herbert Walker and mother of George H. W. Bush.",
      "sourceIds": [
        "src-ca-bush-genealogy",
        "src-ca-walker-usga",
        "src-ca-dorothy-record"
      ],
      "locator": "Genealogy ancestor 3; USGA daughter Dorothy paragraph; presidential daily record of funeral.",
      "dateBasis": "Birth and death years; null death means no death recorded in this edition."
    },
    {
      "id": "standard-oil",
      "label": "Standard Oil",
      "kind": "institution",
      "start": 1870,
      "end": 1911,
      "summary": "Historical oil corporation and trust associated with John D. Rockefeller.",
      "sourceIds": [
        "src-ca-rockefeller-sr"
      ],
      "locator": "Standard Oil section, 1870 organization and 1911 ordered dissolution.",
      "dateBasis": "1870 organization to 1911 dissolution of the historical Standard Oil combination; successor firms are not this node."
    },
    {
      "id": "rockefeller-foundation",
      "label": "Rockefeller Foundation",
      "kind": "institution",
      "start": 1913,
      "end": null,
      "summary": "Philanthropic foundation established by John D. Rockefeller.",
      "sourceIds": [
        "src-ca-rockefeller-sr"
      ],
      "locator": "Philanthropy section, establishment in 1913.",
      "dateBasis": "Founding year; null end does not encode subsequent organizational changes."
    },
    {
      "id": "moma",
      "label": "Museum of Modern Art",
      "kind": "institution",
      "start": 1929,
      "end": null,
      "summary": "New York museum cofounder Abby Aldrich Rockefeller helped establish.",
      "sourceIds": [
        "src-ca-moma"
      ],
      "locator": "Exhibition introduction, three founders in 1929.",
      "dateBasis": "Founding year; null end does not encode subsequent organizational changes."
    },
    {
      "id": "dupont-company",
      "label": "DuPont company",
      "kind": "institution",
      "start": 1802,
      "end": null,
      "summary": "Historical Delaware powder enterprise and subsequent industrial business.",
      "sourceIds": [
        "src-ca-hagley-family",
        "src-ca-winterthur-genealogy"
      ],
      "locator": "Hagley E. I. du Pont section; brochure Beginnings in America.",
      "dateBasis": "Powder enterprise founded in 1802; later mergers and corporate reorganizations are not encoded."
    },
    {
      "id": "winterthur",
      "label": "Winterthur Museum",
      "kind": "institution",
      "start": 1951,
      "end": null,
      "summary": "Museum of American decorative arts established by Henry Francis du Pont.",
      "sourceIds": [
        "src-ca-winterthur-genealogy"
      ],
      "locator": "Brochure, Henry Francis: A Grand Vision, museum opening in 1951.",
      "dateBasis": "1951 public museum opening; earlier private estate history is not this node’s start."
    },
    {
      "id": "national-gallery-of-art",
      "label": "National Gallery of Art",
      "kind": "institution",
      "start": 1937,
      "end": null,
      "summary": "National museum created with Andrew Mellon’s founding gift.",
      "sourceIds": [
        "src-ca-nga-history"
      ],
      "locator": "Timeline, 1937 congressional establishment and 1941 public opening.",
      "dateBasis": "Congressional establishment in 1937; opened to the public in 1941."
    },
    {
      "id": "astor-library",
      "label": "Astor Library",
      "kind": "institution",
      "start": 1849,
      "end": 1895,
      "summary": "Library incorporated after John Jacob Astor’s bequest; later merged into NYPL.",
      "sourceIds": [
        "src-ca-astor-library"
      ],
      "locator": "Historical note, January 1849 incorporation and 1895 merger.",
      "dateBasis": "1849 incorporation to 1895 consolidation into New York Public Library."
    },
    {
      "id": "whitney-museum",
      "label": "Whitney Museum of American Art",
      "kind": "institution",
      "start": 1930,
      "end": null,
      "summary": "Museum established by Gertrude Vanderbilt Whitney for American art.",
      "sourceIds": [
        "src-ca-whitney-history"
      ],
      "locator": "Opening history paragraph, founded in 1930 and opened in 1931.",
      "dateBasis": "Founded in 1930; first public opening was 1931."
    },
    {
      "id": "brown-brothers-harriman",
      "label": "Brown Brothers Harriman",
      "kind": "institution",
      "start": 1931,
      "end": null,
      "summary": "Bank formed by merger of Brown Brothers and Harriman banking firms.",
      "sourceIds": [
        "src-ca-bbh-history"
      ],
      "locator": "Timeline, 1931 merger entry.",
      "dateBasis": "The named partnership formed in 1931; predecessor Brown Brothers dated to 1818."
    },
    {
      "id": "yale",
      "label": "Yale University",
      "kind": "institution",
      "start": 1701,
      "end": null,
      "summary": "Connecticut university attended by Averell Harriman and both Bush presidents.",
      "sourceIds": [
        "src-ca-yale",
        "src-ca-harriman-papers",
        "src-ca-ghw-house",
        "src-ca-gw-bush"
      ],
      "locator": "Yale history, 1701 charter; individual biographies, degree years.",
      "dateBasis": "1701 charter of the Collegiate School; renamed Yale College in 1718 and Yale University in 1887."
    },
    {
      "id": "junior-league-new-york",
      "label": "Junior League of New York",
      "kind": "institution",
      "start": 1901,
      "end": null,
      "summary": "Volunteer organization founded by Mary Harriman and fellow organizers.",
      "sourceIds": [
        "src-ca-mary-harriman"
      ],
      "locator": "Smithsonian biographical note, Junior League founding in 1901.",
      "dateBasis": "Founding year; null end does not encode subsequent organizational changes."
    },
    {
      "id": "caroline-kennedy",
      "label": "Caroline Kennedy",
      "kind": "person",
      "familyId": "kennedy",
      "start": 1957,
      "end": null,
      "summary": "Author and diplomat; daughter of John F. and Jacqueline Kennedy.",
      "sourceIds": [
        "src-ne-caroline-family",
        "src-ne-caroline-competency"
      ],
      "locator": "Life of Jacqueline, Inquiring Photographer section, Caroline born in 1957; certificate opening and education paragraphs.",
      "dateBasis": "Birth year; no death recorded in this edition."
    },
    {
      "id": "us-embassy-australia",
      "label": "U.S. Embassy in Australia",
      "kind": "institution",
      "start": 1946,
      "end": null,
      "summary": "American diplomatic mission elevated from legation to embassy status in 1946.",
      "sourceIds": [
        "src-ne-australia-mission"
      ],
      "locator": "Elevation of Legations to Embassy Status, 1946.",
      "dateBasis": "1946 embassy status; the preceding legation began in 1940."
    }
  ],
  "edges": [
    {
      "claimId": "AD-NE-001",
      "from": "john-adams",
      "to": "john-quincy-adams",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1767,
      "end": null,
      "statement": "John was John Quincy’s father.",
      "sourceIds": [
        "src-ne-jqa"
      ],
      "locator": "Early Life, first paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-002",
      "from": "abigail-adams",
      "to": "john-quincy-adams",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1767,
      "end": null,
      "statement": "Abigail was John Quincy’s mother.",
      "sourceIds": [
        "src-ne-jqa"
      ],
      "locator": "Early Life, first paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-003",
      "from": "john-adams",
      "to": "abigail-adams",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1764,
      "end": 1818,
      "statement": "John and Abigail married in 1764.",
      "sourceIds": [
        "src-ne-abigail-adams"
      ],
      "locator": "Marriage paragraph, October 25, 1764; death paragraph.",
      "dateBasis": "Marriage to Abigail’s death."
    },
    {
      "claimId": "AD-NE-004",
      "from": "john-quincy-adams",
      "to": "louisa-catherine-adams",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1797,
      "end": 1848,
      "statement": "John Quincy married Louisa Catherine Johnson in London.",
      "sourceIds": [
        "src-ne-louisa-adams",
        "src-ne-jqa"
      ],
      "locator": "Courtship paragraph, July 26, 1797; JQA heading.",
      "dateBasis": "Marriage to John Quincy’s death."
    },
    {
      "claimId": "AD-NE-005",
      "from": "john-quincy-adams",
      "to": "charles-francis-adams",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1807,
      "end": null,
      "statement": "John Quincy was Charles Francis’s father.",
      "sourceIds": [
        "src-ne-cfa"
      ],
      "locator": "Birth and parents paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-006",
      "from": "louisa-catherine-adams",
      "to": "charles-francis-adams",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1807,
      "end": null,
      "statement": "Louisa Catherine was Charles Francis’s mother.",
      "sourceIds": [
        "src-ne-cfa"
      ],
      "locator": "Birth and parents paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-007",
      "from": "charles-francis-adams",
      "to": "henry-adams",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1838,
      "end": null,
      "statement": "Charles Francis was Henry Adams’s father.",
      "sourceIds": [
        "src-ne-henry-adams"
      ],
      "locator": "Birth paragraph, February 16, 1838.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-008",
      "from": "john-adams",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1755,
      "end": 1755,
      "statement": "John Adams received his Harvard A.B. in 1755.",
      "sourceIds": [
        "src-ne-john-adams"
      ],
      "locator": "Harvard and legal training paragraph.",
      "dateBasis": "Graduation year is a dated event; no enrollment interval is inferred."
    },
    {
      "claimId": "AD-NE-009",
      "from": "john-quincy-adams",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1787,
      "end": 1787,
      "statement": "John Quincy graduated from Harvard in 1787.",
      "sourceIds": [
        "src-ne-jqa"
      ],
      "locator": "Early Life, return to America and Harvard paragraph.",
      "dateBasis": "Graduation year is a dated event; no enrollment interval is inferred."
    },
    {
      "claimId": "AD-NE-010",
      "from": "charles-francis-adams",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1825,
      "end": 1825,
      "statement": "Charles Francis graduated from Harvard in 1825.",
      "sourceIds": [
        "src-ne-cfa"
      ],
      "locator": "Boston Latin and Harvard paragraph.",
      "dateBasis": "Graduation year is a dated event; no enrollment interval is inferred."
    },
    {
      "claimId": "AD-NE-011",
      "from": "henry-adams",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1858,
      "end": 1858,
      "statement": "Henry Adams graduated from Harvard in 1858.",
      "sourceIds": [
        "src-ne-henry-adams"
      ],
      "locator": "Harvard graduation paragraph.",
      "dateBasis": "Graduation year is a dated event; no enrollment interval is inferred."
    },
    {
      "claimId": "AD-NE-012",
      "from": "john-adams",
      "to": "us-presidency",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1797,
      "end": 1801,
      "statement": "John Adams served as the second president.",
      "sourceIds": [
        "src-ne-abigail-adams"
      ],
      "locator": "John’s vice-presidential and presidential terms paragraph.",
      "dateBasis": "Years of office, rounded to calendar years."
    },
    {
      "claimId": "AD-NE-013",
      "from": "john-quincy-adams",
      "to": "us-presidency",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1825,
      "end": 1829,
      "statement": "John Quincy served as the sixth president.",
      "sourceIds": [
        "src-ne-jqa"
      ],
      "locator": "President of the Whole Nation; 1825 inauguration and 1828 election.",
      "dateBasis": "Years of office, rounded to calendar years."
    },
    {
      "claimId": "AD-NE-014",
      "from": "george-cabot",
      "to": "us-senate",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1791,
      "end": 1796,
      "statement": "George Cabot represented Massachusetts in the Senate.",
      "sourceIds": [
        "src-ne-cabot-congress"
      ],
      "locator": "Directory entry CABOT, George: March 4, 1791–June 9, 1796.",
      "dateBasis": "Years of office, rounded to calendar years."
    },
    {
      "claimId": "AD-NE-015",
      "from": "elizabeth-cabot",
      "to": "walter-cabot",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1860,
      "end": 1904,
      "statement": "Elizabeth Rogers Mason married Walter Channing Cabot.",
      "sourceIds": [
        "src-ne-cabot-papers"
      ],
      "locator": "Biographical Sketches: both spouses.",
      "dateBasis": "Marriage year to Walter’s death."
    },
    {
      "claimId": "AD-NE-016",
      "from": "walter-cabot",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1850,
      "end": 1850,
      "statement": "Walter Cabot graduated from Harvard in 1850.",
      "sourceIds": [
        "src-ne-cabot-papers"
      ],
      "locator": "Biographical Sketch: Walter Channing Cabot.",
      "dateBasis": "Graduation year is a dated event; no enrollment interval is inferred."
    },
    {
      "claimId": "AD-NE-017",
      "from": "henry-cabot-lodge",
      "to": "george-cabot-lodge",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1873,
      "end": null,
      "statement": "Henry Cabot Lodge was the poet George Cabot Lodge’s father.",
      "sourceIds": [
        "src-ne-lodge-papers"
      ],
      "locator": "Biographical Sketch: children of Henry and Anna Lodge.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-018",
      "from": "george-cabot-lodge",
      "to": "henry-cabot-lodge-jr",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1902,
      "end": null,
      "statement": "George Cabot Lodge was Henry Cabot Lodge Jr.’s father.",
      "sourceIds": [
        "src-ne-lodge-papers",
        "src-ne-lodge-campaign"
      ],
      "locator": "Biographical Sketch: younger Henry; Who Was Henry Cabot Lodge, Jr.?",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-019",
      "from": "henry-cabot-lodge",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1871,
      "end": 1871,
      "statement": "Henry Cabot Lodge graduated from Harvard in 1871.",
      "sourceIds": [
        "src-ne-lodge-papers"
      ],
      "locator": "Biographical Sketch: Harvard degrees.",
      "dateBasis": "Graduation year is a dated event; no enrollment interval is inferred."
    },
    {
      "claimId": "AD-NE-020",
      "from": "henry-cabot-lodge-jr",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1924,
      "end": 1924,
      "statement": "Henry Cabot Lodge Jr. graduated from Harvard in 1924.",
      "sourceIds": [
        "src-ne-lodge-papers"
      ],
      "locator": "Biographical Sketch: younger Henry.",
      "dateBasis": "Graduation year is a dated event; no enrollment interval is inferred."
    },
    {
      "claimId": "AD-NE-021",
      "from": "henry-cabot-lodge",
      "to": "us-senate",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1893,
      "end": 1924,
      "statement": "Henry Cabot Lodge served as a Massachusetts senator.",
      "sourceIds": [
        "src-ne-lodge-senate"
      ],
      "locator": "Opening biography paragraph.",
      "dateBasis": "Years of office, rounded to calendar years."
    },
    {
      "claimId": "AD-NE-022",
      "from": "henry-cabot-lodge-jr",
      "to": "us-senate",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1937,
      "end": 1944,
      "statement": "Henry Cabot Lodge Jr.’s first Senate service ended with wartime resignation.",
      "sourceIds": [
        "src-ne-lodge-papers",
        "src-ne-lodge-campaign"
      ],
      "locator": "Biographical Sketch; 1936 election and 1944 resignation.",
      "dateBasis": "1936 election led to the term beginning in 1937; resignation in 1944."
    },
    {
      "claimId": "AD-NE-023",
      "from": "henry-cabot-lodge-jr",
      "to": "us-senate",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1947,
      "end": 1953,
      "statement": "Henry Cabot Lodge Jr. returned to the Senate after the war.",
      "sourceIds": [
        "src-ne-lodge-papers"
      ],
      "locator": "Biographical Sketch: second Senate period.",
      "dateBasis": "Years of office, rounded to calendar years."
    },
    {
      "claimId": "AD-NE-024",
      "from": "francis-cabot-lowell",
      "to": "john-lowell-jr",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1799,
      "end": null,
      "statement": "Francis Cabot Lowell was John Lowell Jr.’s father.",
      "sourceIds": [
        "src-ne-lowell-institute",
        "src-ne-john-lowell-dates"
      ],
      "locator": "Our History opening; Getty birth/death authority record.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-025",
      "from": "john-amory-lowell",
      "to": "augustus-lowell",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1830,
      "end": null,
      "statement": "John Amory Lowell was Augustus Lowell’s father.",
      "sourceIds": [
        "src-ne-lowell-genealogy",
        "src-ne-lowell-archives"
      ],
      "locator": "Lowell pedigree; Harvard Biographical Note, family paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-026",
      "from": "augustus-lowell",
      "to": "abbott-lawrence-lowell",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1856,
      "end": null,
      "statement": "Augustus Lowell was Abbott Lawrence Lowell’s father.",
      "sourceIds": [
        "src-ne-lowell-archives"
      ],
      "locator": "Biographical Note, father paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-027",
      "from": "augustus-lowell",
      "to": "amy-lowell",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1874,
      "end": null,
      "statement": "Augustus Lowell was Amy Lowell’s father.",
      "sourceIds": [
        "src-ne-amy-lowell"
      ],
      "locator": "Opening biography paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-028",
      "from": "francis-cabot-lowell",
      "to": "boston-manufacturing-company",
      "relationType": "business",
      "evidenceType": "documented",
      "start": 1813,
      "end": 1817,
      "statement": "Francis Cabot Lowell was a founding investor in the textile company.",
      "sourceIds": [
        "src-ne-bmc"
      ],
      "locator": "Biographical / Historical Note.",
      "dateBasis": "Company founding to Lowell’s death; not a claim about later ownership."
    },
    {
      "claimId": "AD-NE-029",
      "from": "john-lowell-jr",
      "to": "lowell-institute",
      "relationType": "philanthropy",
      "evidenceType": "documented",
      "start": 1836,
      "end": 1836,
      "statement": "John Lowell Jr.’s bequest established the public-lecture trust.",
      "sourceIds": [
        "src-ne-lowell-institute"
      ],
      "locator": "The Lowell Institute Is Born, 1836.",
      "dateBasis": "Bequest took effect at death; founding event."
    },
    {
      "claimId": "AD-NE-030",
      "from": "john-amory-lowell",
      "to": "lowell-institute",
      "relationType": "philanthropy",
      "evidenceType": "documented",
      "start": 1836,
      "end": 1836,
      "statement": "John Amory Lowell became the Institute’s first trustee.",
      "sourceIds": [
        "src-ne-lowell-institute",
        "src-ne-lowell-archives"
      ],
      "locator": "Our History, July 1836 trustee appointment; Harvard life dates.",
      "dateBasis": "July 1836 appointment event; later trusteeship duration is not encoded."
    },
    {
      "claimId": "AD-NE-031",
      "from": "abbott-lawrence-lowell",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1909,
      "end": 1933,
      "statement": "Abbott Lawrence Lowell served as Harvard president; his administration also enforced discriminatory admissions and housing.",
      "sourceIds": [
        "src-ne-lowell-archives",
        "src-ne-lowell-discrimination"
      ],
      "locator": "Biographical Note; discrimination chapter opening.",
      "dateBasis": "Harvard presidential tenure; this edge records institutional leadership."
    },
    {
      "claimId": "AD-NE-032",
      "from": "theodore-roosevelt-sr",
      "to": "theodore-roosevelt",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1858,
      "end": null,
      "statement": "Theodore Roosevelt Sr. was the future president’s father.",
      "sourceIds": [
        "src-ne-tr-sr",
        "src-ne-tr"
      ],
      "locator": "Four children paragraph; Theodore biography birth.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-033",
      "from": "theodore-roosevelt-sr",
      "to": "elliott-roosevelt",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1860,
      "end": null,
      "statement": "Theodore Roosevelt Sr. was Elliott’s father.",
      "sourceIds": [
        "src-ne-elliott"
      ],
      "locator": "First biographical paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-034",
      "from": "elliott-roosevelt",
      "to": "eleanor-roosevelt",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1884,
      "end": null,
      "statement": "Elliott Roosevelt was Eleanor’s father.",
      "sourceIds": [
        "src-ne-eleanor"
      ],
      "locator": "The Early Years, first paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-035",
      "from": "anna-hall-roosevelt",
      "to": "eleanor-roosevelt",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1884,
      "end": null,
      "statement": "Anna Hall was Eleanor’s mother.",
      "sourceIds": [
        "src-ne-eleanor"
      ],
      "locator": "The Early Years, first paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-036",
      "from": "sara-roosevelt",
      "to": "franklin-roosevelt",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1882,
      "end": null,
      "statement": "Sara Delano Roosevelt was Franklin’s mother.",
      "sourceIds": [
        "src-ne-fdr"
      ],
      "locator": "The Early Years, first paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-037",
      "from": "elliott-roosevelt",
      "to": "anna-hall-roosevelt",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1883,
      "end": 1892,
      "statement": "Elliott Roosevelt married Anna Hall in 1883.",
      "sourceIds": [
        "src-ne-elliott",
        "src-ne-anna-hall"
      ],
      "locator": "Marriage paragraph, December 1, 1883; Anna Quick Facts.",
      "dateBasis": "Marriage to Anna’s death; later separation is acknowledged in Elliott’s biography."
    },
    {
      "claimId": "AD-NE-038",
      "from": "franklin-roosevelt",
      "to": "eleanor-roosevelt",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1905,
      "end": 1945,
      "statement": "Franklin and Eleanor, fifth cousins once removed, married in 1905.",
      "sourceIds": [
        "src-ne-eleanor",
        "src-ne-fdr",
        "src-ne-roosevelt-kinship"
      ],
      "locator": "Eleanor The Early Years, marriage; FDR biography. NPS Inaugural Site FAQ: Were Theodore and Franklin Roosevelt related?",
      "dateBasis": "Marriage to Franklin’s death; distant cousinhood is not encoded as parentage."
    },
    {
      "claimId": "AD-NE-039",
      "from": "theodore-roosevelt",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1876,
      "end": 1876,
      "statement": "Theodore Roosevelt began his Harvard studies in 1876.",
      "sourceIds": [
        "src-ne-tr"
      ],
      "locator": "Youth and Harvard studies paragraph.",
      "dateBasis": "Dated enrollment event; no graduation date inferred from this source."
    },
    {
      "claimId": "AD-NE-040",
      "from": "franklin-roosevelt",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1900,
      "end": 1903,
      "statement": "Franklin Roosevelt earned a Harvard B.A. in history.",
      "sourceIds": [
        "src-ne-fdr"
      ],
      "locator": "The Early Years, education paragraph.",
      "dateBasis": "Source explicitly dates undergraduate studies 1900–1903."
    },
    {
      "claimId": "AD-NE-041",
      "from": "theodore-roosevelt",
      "to": "us-presidency",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1901,
      "end": 1909,
      "statement": "Theodore Roosevelt served as the twenty-sixth president.",
      "sourceIds": [
        "src-ne-tr"
      ],
      "locator": "Presidency section.",
      "dateBasis": "Years of office, rounded to calendar years."
    },
    {
      "claimId": "AD-NE-042",
      "from": "franklin-roosevelt",
      "to": "us-presidency",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1933,
      "end": 1945,
      "statement": "Franklin Roosevelt served as the thirty-second president.",
      "sourceIds": [
        "src-ne-fdr"
      ],
      "locator": "The Presidency section.",
      "dateBasis": "Years of office, rounded to calendar years."
    },
    {
      "claimId": "AD-NE-043",
      "from": "joseph-kennedy",
      "to": "rose-kennedy",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1914,
      "end": 1969,
      "statement": "Joseph Kennedy married Rose Fitzgerald in 1914.",
      "sourceIds": [
        "src-ne-joseph-kennedy"
      ],
      "locator": "Early Years, October 7, 1914; concluding death paragraph.",
      "dateBasis": "Marriage to Joseph’s death."
    },
    {
      "claimId": "AD-NE-044",
      "from": "joseph-kennedy",
      "to": "john-f-kennedy",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1917,
      "end": null,
      "statement": "Joseph Kennedy was John F. Kennedy’s father.",
      "sourceIds": [
        "src-ne-jfk"
      ],
      "locator": "Growing Up in the Kennedy Family.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-045",
      "from": "rose-kennedy",
      "to": "john-f-kennedy",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1917,
      "end": null,
      "statement": "Rose Fitzgerald Kennedy was John F. Kennedy’s mother.",
      "sourceIds": [
        "src-ne-jfk"
      ],
      "locator": "Birth notecard and family narrative.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-046",
      "from": "joseph-kennedy",
      "to": "robert-kennedy",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1925,
      "end": null,
      "statement": "Joseph Kennedy was Robert Kennedy’s father.",
      "sourceIds": [
        "src-ne-rfk"
      ],
      "locator": "Opening biographical paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-047",
      "from": "rose-kennedy",
      "to": "eunice-kennedy-shriver",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1921,
      "end": null,
      "statement": "Rose Kennedy was Eunice Kennedy Shriver’s mother.",
      "sourceIds": [
        "src-ne-eunice"
      ],
      "locator": "Opening biographical paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-048",
      "from": "john-f-kennedy",
      "to": "us-presidency",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1961,
      "end": 1963,
      "statement": "John F. Kennedy served as the thirty-fifth president.",
      "sourceIds": [
        "src-ne-jfk"
      ],
      "locator": "Presidential inauguration and assassination sections.",
      "dateBasis": "Years of office, rounded to calendar years."
    },
    {
      "claimId": "AD-NE-049",
      "from": "eunice-kennedy-shriver",
      "to": "special-olympics",
      "relationType": "philanthropy",
      "evidenceType": "documented",
      "start": 1968,
      "end": 2009,
      "statement": "Eunice Kennedy Shriver founded Special Olympics and remained on its board.",
      "sourceIds": [
        "src-ne-eunice"
      ],
      "locator": "1968 Games, incorporation and board-service paragraphs.",
      "dateBasis": "Founding year to death; not an assertion of continuous daily management."
    },
    {
      "claimId": "AD-NE-050",
      "from": "edward-kennedy",
      "to": "us-senate",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1962,
      "end": 2009,
      "statement": "Edward Kennedy served as a Massachusetts senator.",
      "sourceIds": [
        "src-ne-ted"
      ],
      "locator": "1962 chronology; biographical dates and obituary.",
      "dateBasis": "Years of office, rounded to calendar years."
    },
    {
      "claimId": "AD-NE-051",
      "from": "joseph-kennedy",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1912,
      "end": 1912,
      "statement": "Joseph Kennedy earned his Harvard B.A. in 1912.",
      "sourceIds": [
        "src-ne-joseph-kennedy"
      ],
      "locator": "Early Years, Harvard paragraph.",
      "dateBasis": "Graduation year is a dated event; no enrollment interval is inferred."
    },
    {
      "claimId": "AD-NE-052",
      "from": "john-f-kennedy",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1936,
      "end": 1940,
      "statement": "John F. Kennedy attended and graduated from Harvard.",
      "sourceIds": [
        "src-ne-jfk"
      ],
      "locator": "Harvard entry in 1936 and June 1940 graduation.",
      "dateBasis": "Explicit undergraduate years."
    },
    {
      "claimId": "AD-NE-053",
      "from": "robert-kennedy",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1948,
      "end": 1948,
      "statement": "Robert Kennedy received a Harvard degree in government.",
      "sourceIds": [
        "src-ne-rfk"
      ],
      "locator": "Opening, education paragraph.",
      "dateBasis": "Graduation year is a dated event; no enrollment interval is inferred."
    },
    {
      "claimId": "AD-NE-054",
      "from": "henry-cabot-lodge",
      "to": "boston-brahmins",
      "relationType": "regional-social",
      "evidenceType": "interpretive",
      "start": 1860,
      "end": 1924,
      "statement": "Lodge is grouped with Boston Brahmins; the Senate biography applies this historical label.",
      "sourceIds": [
        "src-ne-lodge-senate"
      ],
      "locator": "Second biographical paragraph.",
      "dateBasis": "Editorial visualization window from the label’s nineteenth-century use to Lodge’s death; not a membership term."
    },
    {
      "claimId": "AD-NE-055",
      "from": "abbott-lawrence-lowell",
      "to": "boston-brahmins",
      "relationType": "regional-social",
      "evidenceType": "interpretive",
      "start": 1877,
      "end": 1943,
      "statement": "Lowell is grouped with Boston Brahmins, following Harvard’s characterization of his social background.",
      "sourceIds": [
        "src-ne-lowell-archives"
      ],
      "locator": "Biographical Note, first paragraph.",
      "dateBasis": "Editorial window from adulthood/Harvard graduation to death; not a membership term."
    },
    {
      "claimId": "AD-NE-056",
      "from": "elizabeth-cabot",
      "to": "boston-brahmins",
      "relationType": "regional-social",
      "evidenceType": "interpretive",
      "start": 1860,
      "end": 1920,
      "statement": "The Cabot marriage and civic milieu are grouped within Boston’s old-family network.",
      "sourceIds": [
        "src-ne-cabot-papers",
        "src-ne-brahmins"
      ],
      "locator": "Cabot papers Biographical Sketch; Historical Society list of Cabot families.",
      "dateBasis": "Editorial period begins with the 1860 Cabot marriage and ends at death; family grouping is interpretive."
    },
    {
      "claimId": "AD-NE-057",
      "from": "rose-kennedy",
      "to": "robert-kennedy",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1925,
      "end": null,
      "statement": "Rose Kennedy was Robert Kennedy’s mother.",
      "sourceIds": [
        "src-ne-rfk"
      ],
      "locator": "Opening biographical paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-058",
      "from": "joseph-kennedy",
      "to": "eunice-kennedy-shriver",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1921,
      "end": null,
      "statement": "Joseph Kennedy was Eunice Kennedy Shriver’s father.",
      "sourceIds": [
        "src-ne-eunice"
      ],
      "locator": "Opening biographical paragraph.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-059",
      "from": "joseph-kennedy",
      "to": "edward-kennedy",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1932,
      "end": null,
      "statement": "Joseph Kennedy was Edward Kennedy’s father.",
      "sourceIds": [
        "src-ne-joseph-kennedy"
      ],
      "locator": "Politics and Government: birth of Edward in 1932.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-060",
      "from": "rose-kennedy",
      "to": "edward-kennedy",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1932,
      "end": null,
      "statement": "Rose Kennedy was Edward Kennedy’s mother.",
      "sourceIds": [
        "src-ne-rose-kennedy"
      ],
      "locator": "Rose Kennedy: In Her Own Words, profile listing children.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-CA-001",
      "from": "john-d-rockefeller-sr",
      "to": "john-d-rockefeller-jr",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1874,
      "end": null,
      "statement": "John D. Rockefeller Sr. was John D. Jr.’s father.",
      "sourceIds": [
        "src-ca-rockefeller-jr"
      ],
      "locator": "Biography opening, parents and birth.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-002",
      "from": "laura-spelman-rockefeller",
      "to": "john-d-rockefeller-jr",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1874,
      "end": null,
      "statement": "Laura Spelman Rockefeller was John D. Jr.’s mother.",
      "sourceIds": [
        "src-ca-rockefeller-jr"
      ],
      "locator": "Biography opening, parents and birth.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-003",
      "from": "john-d-rockefeller-jr",
      "to": "nelson-rockefeller",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1908,
      "end": null,
      "statement": "John D. Rockefeller Jr. was Nelson Rockefeller’s father.",
      "sourceIds": [
        "src-ca-nelson-rockefeller"
      ],
      "locator": "Biography opening, parents and birth.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-004",
      "from": "abby-aldrich-rockefeller",
      "to": "nelson-rockefeller",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1908,
      "end": null,
      "statement": "Abby Aldrich Rockefeller was Nelson Rockefeller’s mother.",
      "sourceIds": [
        "src-ca-nelson-rockefeller"
      ],
      "locator": "Biography opening, parents and birth.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-005",
      "from": "john-d-rockefeller-sr",
      "to": "laura-spelman-rockefeller",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1864,
      "end": 1915,
      "statement": "John D. Rockefeller married Laura Spelman in 1864.",
      "sourceIds": [
        "src-ca-laura-rockefeller"
      ],
      "locator": "Marriage paragraph, September 8, 1864; death paragraph, 1915.",
      "dateBasis": "Marriage year through the first spouse death; relationship is symmetric."
    },
    {
      "claimId": "AD-CA-006",
      "from": "john-d-rockefeller-jr",
      "to": "abby-aldrich-rockefeller",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1901,
      "end": 1948,
      "statement": "John D. Rockefeller Jr. married Abby Aldrich in 1901.",
      "sourceIds": [
        "src-ca-abby-rockefeller"
      ],
      "locator": "Marriage paragraph, October 9, 1901; death in 1948.",
      "dateBasis": "Marriage year through the first spouse death; relationship is symmetric."
    },
    {
      "claimId": "AD-CA-007",
      "from": "abby-aldrich-rockefeller",
      "to": "moma",
      "relationType": "philanthropy",
      "evidenceType": "documented",
      "start": 1929,
      "end": 1929,
      "statement": "Abby Aldrich Rockefeller cofounded MoMA with Bliss and Sullivan.",
      "sourceIds": [
        "src-ca-moma"
      ],
      "locator": "Exhibition introduction, founding in 1929.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-008",
      "from": "john-d-rockefeller-sr",
      "to": "standard-oil",
      "relationType": "business",
      "evidenceType": "documented",
      "start": 1870,
      "end": 1911,
      "statement": "Rockefeller was Standard Oil’s president, retiring from active management in 1896.",
      "sourceIds": [
        "src-ca-rockefeller-sr"
      ],
      "locator": "Standard Oil section, presidency until 1911 and active retirement in 1896.",
      "dateBasis": "Formal presidency from organization in 1870 to 1911; active management ended in 1896."
    },
    {
      "claimId": "AD-CA-009",
      "from": "john-d-rockefeller-sr",
      "to": "rockefeller-foundation",
      "relationType": "philanthropy",
      "evidenceType": "documented",
      "start": 1913,
      "end": 1913,
      "statement": "John D. Rockefeller established the Rockefeller Foundation.",
      "sourceIds": [
        "src-ca-rockefeller-sr"
      ],
      "locator": "Philanthropy section, Rockefeller Foundation established in 1913.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-010",
      "from": "e-i-du-pont",
      "to": "henry-du-pont",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1812,
      "end": null,
      "statement": "Éleuthère Irénée du Pont was Henry du Pont’s father.",
      "sourceIds": [
        "src-ca-hagley-family"
      ],
      "locator": "Henry du Pont section, sixth child of E. I. du Pont.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-011",
      "from": "henry-du-pont",
      "to": "henry-algernon-du-pont",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1838,
      "end": null,
      "statement": "Henry du Pont was Henry Algernon du Pont’s father.",
      "sourceIds": [
        "src-ca-winterthur-archives"
      ],
      "locator": "Downs Collection entry 658, parentage.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-012",
      "from": "henry-algernon-du-pont",
      "to": "henry-francis-du-pont",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1880,
      "end": null,
      "statement": "Henry Algernon du Pont was Henry Francis du Pont’s father.",
      "sourceIds": [
        "src-ca-winterthur-archives"
      ],
      "locator": "Downs Collection entry 659, parentage.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-013",
      "from": "henry-francis-du-pont",
      "to": "ruth-wales-du-pont",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1916,
      "end": 1967,
      "statement": "Henry Francis du Pont married Ruth Wales in 1916.",
      "sourceIds": [
        "src-ca-winterthur-archives"
      ],
      "locator": "Downs Collection entries 659–660; marriage June 24, 1916; Ruth’s dates 1889–1967.",
      "dateBasis": "Marriage year through the first spouse death; relationship is symmetric."
    },
    {
      "claimId": "AD-CA-014",
      "from": "e-i-du-pont",
      "to": "dupont-company",
      "relationType": "business",
      "evidenceType": "documented",
      "start": 1802,
      "end": 1802,
      "statement": "Éleuthère Irénée du Pont established the Delaware powder enterprise.",
      "sourceIds": [
        "src-ca-hagley-family",
        "src-ca-winterthur-genealogy"
      ],
      "locator": "Hagley E. I. du Pont section; brochure Beginnings in America, 1802.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-015",
      "from": "henry-du-pont",
      "to": "dupont-company",
      "relationType": "business",
      "evidenceType": "documented",
      "start": 1851,
      "end": 1889,
      "statement": "Henry du Pont served as the company’s third president.",
      "sourceIds": [
        "src-ca-hagley-family"
      ],
      "locator": "Henry du Pont section, president from 1851 to 1889.",
      "dateBasis": "Reported presidency years, 1851–1889."
    },
    {
      "claimId": "AD-CA-016",
      "from": "henry-francis-du-pont",
      "to": "winterthur",
      "relationType": "philanthropy",
      "evidenceType": "documented",
      "start": 1951,
      "end": 1951,
      "statement": "Henry Francis du Pont opened Winterthur as a public museum.",
      "sourceIds": [
        "src-ca-winterthur-genealogy"
      ],
      "locator": "Henry Francis: A Grand Vision, museum opening in 1951.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-017",
      "from": "henry-francis-du-pont",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1903,
      "end": 1903,
      "statement": "Henry Francis du Pont received his Harvard A.B. in 1903.",
      "sourceIds": [
        "src-ca-hf-harvard"
      ],
      "locator": "Opening paragraph quotes his 50th reunion report and identifies A.B. 1903.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-018",
      "from": "henry-algernon-du-pont",
      "to": "us-senate",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1906,
      "end": 1917,
      "statement": "Henry Algernon du Pont represented Delaware in the United States Senate.",
      "sourceIds": [
        "src-ca-senators"
      ],
      "locator": "Chronological list, du Pont entry: June 13, 1906–March 3, 1917.",
      "dateBasis": "Actual Senate service; year resolution represents June 13, 1906–March 3, 1917."
    },
    {
      "claimId": "AD-CA-019",
      "from": "thomas-mellon",
      "to": "andrew-mellon",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1855,
      "end": null,
      "statement": "Thomas Mellon was Andrew Mellon’s father.",
      "sourceIds": [
        "src-ca-andrew-mellon",
        "src-ca-mellon-nps"
      ],
      "locator": "Family origins paragraph; NPS title supplies Andrew’s birth year.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-020",
      "from": "andrew-mellon",
      "to": "ailsa-mellon-bruce",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1901,
      "end": null,
      "statement": "Andrew Mellon was Ailsa Mellon Bruce’s father.",
      "sourceIds": [
        "src-ca-andrew-mellon"
      ],
      "locator": "Family and legacy paragraph, children and their life dates.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-021",
      "from": "andrew-mellon",
      "to": "paul-mellon",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1907,
      "end": null,
      "statement": "Andrew Mellon was Paul Mellon’s father.",
      "sourceIds": [
        "src-ca-andrew-mellon"
      ],
      "locator": "Family and legacy paragraph, children and their life dates.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-022",
      "from": "andrew-mellon",
      "to": "national-gallery-of-art",
      "relationType": "philanthropy",
      "evidenceType": "documented",
      "start": 1937,
      "end": 1937,
      "statement": "Andrew Mellon’s collection and building gift established the National Gallery.",
      "sourceIds": [
        "src-ca-nga-history"
      ],
      "locator": "1936 offer and 1937 congressional acceptance entries.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-023",
      "from": "ailsa-mellon-bruce",
      "to": "national-gallery-of-art",
      "relationType": "philanthropy",
      "evidenceType": "documented",
      "start": 1967,
      "end": 1967,
      "statement": "Ailsa Mellon Bruce helped fund the Gallery’s East Building.",
      "sourceIds": [
        "src-ca-nga-history"
      ],
      "locator": "1967 timeline entry, funds from Ailsa Mellon Bruce and Paul Mellon.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-024",
      "from": "paul-mellon",
      "to": "national-gallery-of-art",
      "relationType": "philanthropy",
      "evidenceType": "documented",
      "start": 1967,
      "end": 1967,
      "statement": "Paul Mellon helped fund the Gallery’s East Building.",
      "sourceIds": [
        "src-ca-nga-history"
      ],
      "locator": "1967 timeline entry, funds from Paul Mellon and Ailsa Mellon Bruce.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-025",
      "from": "john-jacob-astor",
      "to": "william-backhouse-astor-sr",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1792,
      "end": null,
      "statement": "John Jacob Astor was William Backhouse Astor Sr.’s father.",
      "sourceIds": [
        "src-ca-astor-papers"
      ],
      "locator": "Biographical note, William B. Astor’s parents and life dates.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-026",
      "from": "william-backhouse-astor-sr",
      "to": "william-backhouse-astor-jr",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1829,
      "end": null,
      "statement": "William Backhouse Astor Sr. was William Backhouse Astor Jr.’s father.",
      "sourceIds": [
        "src-ca-astor-papers"
      ],
      "locator": "Biographical note, William B. Astor Jr. as son, with 1829–1892 dates.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-027",
      "from": "william-backhouse-astor-jr",
      "to": "caroline-schermerhorn-astor",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1853,
      "end": 1892,
      "statement": "William Astor married Caroline Schermerhorn in 1853.",
      "sourceIds": [
        "src-ca-caroline-astor",
        "src-ca-astor-papers"
      ],
      "locator": "Chronicles chapter III, entry 111, Caroline’s 1853 marriage; NYPL gives William’s death year.",
      "dateBasis": "Marriage year through the first spouse death; relationship is symmetric."
    },
    {
      "claimId": "AD-CA-028",
      "from": "john-jacob-astor",
      "to": "astor-library",
      "relationType": "philanthropy",
      "evidenceType": "documented",
      "start": 1848,
      "end": 1848,
      "statement": "John Jacob Astor’s testamentary bequest financed the Astor Library.",
      "sourceIds": [
        "src-ca-astor-library",
        "src-ca-astor-papers"
      ],
      "locator": "Library historical note, founding bequest; Astor papers biographical note, 1848 death.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-029",
      "from": "cornelius-vanderbilt",
      "to": "william-henry-vanderbilt",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1821,
      "end": null,
      "statement": "Cornelius Vanderbilt was William Henry Vanderbilt’s father.",
      "sourceIds": [
        "src-ca-vanderbilt-archives"
      ],
      "locator": "Biographical history, eldest son William Henry born 1821.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-030",
      "from": "william-henry-vanderbilt",
      "to": "cornelius-vanderbilt-ii",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1843,
      "end": null,
      "statement": "William Henry Vanderbilt was Cornelius Vanderbilt II’s father.",
      "sourceIds": [
        "src-ca-vanderbilt-archives"
      ],
      "locator": "Biographical history, William Henry’s eldest son Cornelius born 1843.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-031",
      "from": "cornelius-vanderbilt-ii",
      "to": "gertrude-vanderbilt-whitney",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1875,
      "end": null,
      "statement": "Cornelius Vanderbilt II was Gertrude Vanderbilt Whitney’s father.",
      "sourceIds": [
        "src-ca-gertrude-whitney"
      ],
      "locator": "Artist biography, daughter of Cornelius Vanderbilt II and birth date.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-032",
      "from": "gertrude-vanderbilt-whitney",
      "to": "harry-payne-whitney",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1896,
      "end": 1930,
      "statement": "Gertrude Vanderbilt married Harry Payne Whitney in 1896.",
      "sourceIds": [
        "src-ca-harry-whitney"
      ],
      "locator": "AMNH biography, August 25, 1896 marriage and Harry’s 1930 death.",
      "dateBasis": "Marriage year through the first spouse death; relationship is symmetric."
    },
    {
      "claimId": "AD-CA-033",
      "from": "gertrude-vanderbilt-whitney",
      "to": "whitney-museum",
      "relationType": "philanthropy",
      "evidenceType": "documented",
      "start": 1930,
      "end": 1930,
      "statement": "Gertrude Vanderbilt Whitney founded the Whitney Museum.",
      "sourceIds": [
        "src-ca-whitney-history"
      ],
      "locator": "Museum history, founded in 1930 and opened in 1931.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-034",
      "from": "william-collins-whitney",
      "to": "harry-payne-whitney",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1872,
      "end": null,
      "statement": "William Collins Whitney was Harry Payne Whitney’s father.",
      "sourceIds": [
        "src-ca-harry-whitney"
      ],
      "locator": "AMNH biography, Harry’s parents and birth date.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-035",
      "from": "edward-henry-harriman",
      "to": "w-averell-harriman",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1891,
      "end": null,
      "statement": "Edward Henry Harriman was W. Averell Harriman’s father.",
      "sourceIds": [
        "src-ca-bbh-history",
        "src-ca-harriman-papers"
      ],
      "locator": "BBH timeline, 1919 sons of E. H.; LOC Biographical Note, 1891 birth.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-036",
      "from": "edward-henry-harriman",
      "to": "mary-harriman-rumsey",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1881,
      "end": null,
      "statement": "Edward Henry Harriman was Mary Harriman Rumsey’s father.",
      "sourceIds": [
        "src-ca-mary-harriman"
      ],
      "locator": "Smithsonian biographical note, oldest child of Edward Henry Harriman.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-037",
      "from": "w-averell-harriman",
      "to": "brown-brothers-harriman",
      "relationType": "business",
      "evidenceType": "documented",
      "start": 1931,
      "end": 1946,
      "statement": "W. Averell Harriman was a Brown Brothers Harriman partner.",
      "sourceIds": [
        "src-ca-harriman-papers"
      ],
      "locator": "Biographical Note, page 6: partner, 1931–1946.",
      "dateBasis": "Reported partnership years, 1931–1946."
    },
    {
      "claimId": "AD-CA-038",
      "from": "w-averell-harriman",
      "to": "yale",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1913,
      "end": 1913,
      "statement": "W. Averell Harriman earned a Yale B.A. in 1913.",
      "sourceIds": [
        "src-ca-harriman-papers"
      ],
      "locator": "Biographical Note, page 6, 1913 B.A., Yale University.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-039",
      "from": "mary-harriman-rumsey",
      "to": "junior-league-new-york",
      "relationType": "philanthropy",
      "evidenceType": "documented",
      "start": 1901,
      "end": 1901,
      "statement": "Mary Harriman cofounded the New York Junior League.",
      "sourceIds": [
        "src-ca-mary-harriman"
      ],
      "locator": "Smithsonian biographical note, Junior League founding in 1901.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-040",
      "from": "george-herbert-walker",
      "to": "dorothy-walker-bush",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1901,
      "end": null,
      "statement": "George Herbert Walker was Dorothy Walker Bush’s father.",
      "sourceIds": [
        "src-ca-walker-usga",
        "src-ca-bush-genealogy"
      ],
      "locator": "USGA article, daughter Dorothy; genealogy ancestors 3 and 6.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-041",
      "from": "prescott-bush",
      "to": "george-h-w-bush",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1924,
      "end": null,
      "statement": "Prescott Bush was George H. W. Bush’s father.",
      "sourceIds": [
        "src-ca-ghw-house"
      ],
      "locator": "House biographical entry, son of Prescott Bush and birth date.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-042",
      "from": "dorothy-walker-bush",
      "to": "george-h-w-bush",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1924,
      "end": null,
      "statement": "Dorothy Walker Bush was George H. W. Bush’s mother.",
      "sourceIds": [
        "src-ca-bush-genealogy"
      ],
      "locator": "Numbered pedigree, George H. W. Bush and parents, ancestors 1–3.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-043",
      "from": "george-h-w-bush",
      "to": "george-w-bush",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1946,
      "end": null,
      "statement": "George H. W. Bush was George W. Bush’s father.",
      "sourceIds": [
        "src-ca-gw-bush"
      ],
      "locator": "Early Life and Career, birth and parents.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-044",
      "from": "barbara-pierce-bush",
      "to": "george-w-bush",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1946,
      "end": null,
      "statement": "Barbara Pierce Bush was George W. Bush’s mother.",
      "sourceIds": [
        "src-ca-gw-bush"
      ],
      "locator": "Early Life and Career, birth and parents.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-045",
      "from": "george-h-w-bush",
      "to": "jeb-bush",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1953,
      "end": null,
      "statement": "George H. W. Bush was Jeb Bush’s father.",
      "sourceIds": [
        "src-ca-ghw-library",
        "src-ca-jeb-bush"
      ],
      "locator": "Library family section, son Jeb; Florida biography, birth year.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-046",
      "from": "barbara-pierce-bush",
      "to": "jeb-bush",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1953,
      "end": null,
      "statement": "Barbara Pierce Bush was Jeb Bush’s mother.",
      "sourceIds": [
        "src-ca-barbara-bush",
        "src-ca-jeb-bush"
      ],
      "locator": "Barbara biography, son Jeb; Florida biography, birth year.",
      "dateBasis": "Child birth year anchors an enduring parent–child relationship; null end does not imply both people remain alive."
    },
    {
      "claimId": "AD-CA-047",
      "from": "prescott-bush",
      "to": "dorothy-walker-bush",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1921,
      "end": 1972,
      "statement": "Prescott Bush married Dorothy Walker in 1921.",
      "sourceIds": [
        "src-ca-bush-genealogy"
      ],
      "locator": "Ancestor 2, marriage August 6, 1921 and Prescott’s October 8, 1972 death.",
      "dateBasis": "Marriage year through the first spouse death; relationship is symmetric."
    },
    {
      "claimId": "AD-CA-048",
      "from": "george-h-w-bush",
      "to": "barbara-pierce-bush",
      "relationType": "marriage",
      "evidenceType": "documented",
      "start": 1945,
      "end": 2018,
      "statement": "George H. W. Bush married Barbara Pierce in 1945.",
      "sourceIds": [
        "src-ca-barbara-bush"
      ],
      "locator": "Marriage January 6, 1945; Barbara’s death April 17, 2018.",
      "dateBasis": "Marriage year through the first spouse death; relationship is symmetric."
    },
    {
      "claimId": "AD-CA-049",
      "from": "prescott-bush",
      "to": "us-senate",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1952,
      "end": 1963,
      "statement": "Prescott Bush represented Connecticut in the United States Senate.",
      "sourceIds": [
        "src-ca-senators"
      ],
      "locator": "Chronological list, Bush entry: November 5, 1952–January 3, 1963.",
      "dateBasis": "Actual Senate service; year resolution represents November 5, 1952–January 3, 1963."
    },
    {
      "claimId": "AD-CA-050",
      "from": "george-h-w-bush",
      "to": "us-presidency",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 1989,
      "end": 1993,
      "statement": "George H. W. Bush served as United States president.",
      "sourceIds": [
        "src-ca-ghw-library",
        "src-ca-ghw-presidency"
      ],
      "locator": "Presidential biography, January 20, 1989 inauguration; archival gallery heading gives presidency 1989–1993.",
      "dateBasis": "Actual presidential term, January 20, 1989–January 20, 1993."
    },
    {
      "claimId": "AD-CA-051",
      "from": "george-w-bush",
      "to": "us-presidency",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 2001,
      "end": 2009,
      "statement": "George W. Bush served as United States president.",
      "sourceIds": [
        "src-ca-gw-bush"
      ],
      "locator": "Political section, January 20, 2001 inauguration; Post-Presidential section, January 20, 2009 return.",
      "dateBasis": "Actual presidential terms, January 20, 2001–January 20, 2009."
    },
    {
      "claimId": "AD-CA-052",
      "from": "george-h-w-bush",
      "to": "yale",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1948,
      "end": 1948,
      "statement": "George H. W. Bush graduated from Yale in 1948.",
      "sourceIds": [
        "src-ca-ghw-house"
      ],
      "locator": "House biographical entry, graduated from Yale University in 1948.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-053",
      "from": "george-w-bush",
      "to": "yale",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1968,
      "end": 1968,
      "statement": "George W. Bush earned a Yale history degree in 1968.",
      "sourceIds": [
        "src-ca-gw-bush"
      ],
      "locator": "Early Life and Career, bachelor’s degree in History in 1968.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-054",
      "from": "george-w-bush",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1975,
      "end": 1975,
      "statement": "George W. Bush earned a Harvard M.B.A. in 1975.",
      "sourceIds": [
        "src-ca-gw-bush"
      ],
      "locator": "Early Life and Career, master’s in Business Administration in 1975.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-CA-055",
      "from": "prescott-bush",
      "to": "brown-brothers-harriman",
      "relationType": "business",
      "evidenceType": "documented",
      "start": 1931,
      "end": 1931,
      "statement": "Prescott Bush established the bank’s private wealth management business.",
      "sourceIds": [
        "src-ca-bbh-history"
      ],
      "locator": "Timeline, 1931 Prescott Bush establishes private wealth management business entry.",
      "dateBasis": "A dated milestone, not the full duration of affiliation."
    },
    {
      "claimId": "AD-NE-061",
      "from": "john-f-kennedy",
      "to": "caroline-kennedy",
      "relationType": "blood",
      "evidenceType": "documented",
      "start": 1957,
      "end": null,
      "statement": "John F. Kennedy was Caroline Kennedy’s father.",
      "sourceIds": [
        "src-ne-caroline-family"
      ],
      "locator": "The Inquiring Photographer section, Caroline’s birth in 1957.",
      "dateBasis": "Child’s birth year; parent–child kinship is enduring, not a period of activity."
    },
    {
      "claimId": "AD-NE-062",
      "from": "caroline-kennedy",
      "to": "us-embassy-australia",
      "relationType": "politics",
      "evidenceType": "documented",
      "start": 2022,
      "end": 2024,
      "statement": "Caroline Kennedy represented the United States as ambassador to Australia.",
      "sourceIds": [
        "src-ne-caroline-australia"
      ],
      "locator": "Ambassadorial Assignments Overseas, November 25, 2024, Australia row: Caroline Kennedy, appointment June 10, 2022.",
      "dateBasis": "Documented window from the 2022 appointment to the November 2024 official roster; exact departure day is not encoded."
    },
    {
      "claimId": "AD-NE-063",
      "from": "caroline-kennedy",
      "to": "harvard",
      "relationType": "education",
      "evidenceType": "documented",
      "start": 1980,
      "end": 1980,
      "statement": "Caroline Kennedy earned a Harvard degree in fine arts.",
      "sourceIds": [
        "src-ne-caroline-competency"
      ],
      "locator": "Certificate of Demonstrated Competence, January 24, 2022, final education paragraph.",
      "dateBasis": "1980 degree milestone, not the full enrollment period."
    }
  ],
  "sources": [
    {
      "id": "src-ne-john-adams",
      "title": "John Adams (1735–1826)",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/adam/learn/historyculture/john-adams-1735-1826.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-abigail-adams",
      "title": "Abigail Adams (1744–1818)",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/adam/learn/historyculture/abigail-adams-1744-1818.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-jqa",
      "title": "John Quincy Adams (1767–1848)",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/adam/learn/historyculture/john-quincy-adams-1767-1848.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-louisa-adams",
      "title": "Louisa Catherine Adams (1775–1852)",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/adam/learn/historyculture/louisa-catherine-adams-1775-1852.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-cfa",
      "title": "Charles Francis Adams (1807–1886)",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/adam/learn/historyculture/charles-francis-adams-1807-1886.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-henry-adams",
      "title": "Henry Adams (1838–1918)",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/adam/learn/historyculture/henry-adams-1838-1918.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-cabot-congress",
      "title": "Biographical Directory of the United States Congress, 1774–2005",
      "publisher": "U.S. Government Publishing Office",
      "url": "https://www.govinfo.gov/content/pkg/GPO-CDOC-108hdoc222/pdf/GPO-CDOC-108hdoc222.pdf",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-cabot-papers",
      "title": "Rogers–Mason–Cabot Family Papers, 1773–1940",
      "publisher": "Massachusetts Historical Society",
      "url": "https://www.masshist.org/collection-guides/view/fa0405",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-lodge-senate",
      "title": "Henry Cabot Lodge: The Senate as a Continuing Body",
      "publisher": "U.S. Senate Historical Office",
      "url": "https://www.senate.gov/about/origins-foundations/idea-of-the-senate/1903Lodge.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-lodge-papers",
      "title": "Lodge Family Papers, MSS 458",
      "publisher": "Phillips Library, Peabody Essex Museum",
      "url": "https://pem.as.atlas-sys.com/repositories/2/resources/168",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-lodge-campaign",
      "title": "The Other Side of the Hill",
      "publisher": "Massachusetts Historical Society",
      "url": "https://www.masshist.org/object-of-the-month/september-2016",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-lowell-institute",
      "title": "Our History",
      "publisher": "Lowell Institute",
      "url": "https://lowellinstitute.org/history/",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-john-lowell-dates",
      "title": "John Lowell, Jr., ULAN 500434607",
      "publisher": "Getty Research Institute",
      "url": "https://www.getty.edu/vow/ULANFullDisplay?find=&nation=Finnish&role=&subjectid=500434607",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-lowell-archives",
      "title": "Papers of Abbott Lawrence Lowell, UAI 15.896",
      "publisher": "Harvard University Archives",
      "url": "https://hollisarchives.lib.harvard.edu/catalog/hua26013",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-lowell-genealogy",
      "title": "Additional Noted American Cousins of The Princess of Wales",
      "publisher": "New England Historic Genealogical Society / American Ancestors",
      "url": "https://www.americanancestors.org/gary-boyd-roberts/princessofwales",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-amy-lowell",
      "title": "Amy Lowell",
      "publisher": "Boston Athenaeum",
      "url": "https://bostonathenaeum.org/news/amy-lowell/",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-lowell-discrimination",
      "title": "Abbott Lawrence Lowell and Discrimination in Admissions and Housing",
      "publisher": "Harvard & the Legacy of Slavery",
      "url": "https://legacyofslaveryreport.harvard.edu/report/abbott-lawrence-lowell-and-discrimination-in-admissions-and-housing",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-bmc",
      "title": "Boston Manufacturing Company records, 1813–1933",
      "publisher": "Harvard Business School, Baker Library",
      "url": "https://hollisarchives.lib.harvard.edu/catalog/bak00043",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-tr-sr",
      "title": "Theodore Roosevelt Sr.",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/people/theodore-roosevelt-sr.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-tr",
      "title": "Theodore Roosevelt Biography",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/articles/000/theodore-roosevelt-biography.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-elliott",
      "title": "Elliott Roosevelt",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/people/elliott-roosevelt.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-anna-hall",
      "title": "Anna Hall Roosevelt",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/people/anna-hall-roosevelt.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-eleanor",
      "title": "Eleanor Roosevelt",
      "publisher": "National Park Service; biography courtesy of FDR Presidential Library",
      "url": "https://www.nps.gov/people/eleanor-roosevelt.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-fdr",
      "title": "Franklin D. Roosevelt",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/people/franklin-d-roosevelt.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-sara",
      "title": "Sara Delano Roosevelt",
      "publisher": "National Park Service",
      "url": "https://www.nps.gov/hofr/learn/historyculture/sara-delano-roosevelt.htm",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-joseph-kennedy",
      "title": "Joseph P. Kennedy",
      "publisher": "John F. Kennedy Presidential Library and Museum",
      "url": "https://www.jfklibrary.org/learn/about-jfk/the-kennedy-family/joseph-p-kennedy",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-rose-kennedy",
      "title": "Rose Kennedy: In Her Own Words, Fall 2006 Legacy newsletter",
      "publisher": "John F. Kennedy Presidential Library and Museum",
      "url": "https://www.jfklibrary.org/sites/default/files/2018-05/2006LegacyFall.pdf",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-jfk",
      "title": "Life of John F. Kennedy",
      "publisher": "John F. Kennedy Presidential Library and Museum",
      "url": "https://www.jfklibrary.org/learn/about-jfk/life-of-john-f-kennedy",
      "accessed": "2026-10-06"
    },
    {
      "id": "src-ne-rfk",
      "title": "Robert F. Kennedy",
      "publisher": "John F. Kennedy Presidential Library and Museum",
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