Margaret Tyndal Winthrop

Margaret Tyndal Winthrop (February 23, 1880 - July 7, 1970) was the maternal grandmother of U.S. Senator John Kerry, the 2004 presidential candidate. (Winthrop's daughter, Rosemary Isabel Forbes, was Kerry's mother.)

Winthrop came from a family with deep roots in New England history. She was born in Massachusetts and raised in Boston. Her grandfather was Robert Charles Winthrop, the conservative Whig Speaker of the House and a U.S. Senator. Her ancestors include James Bowdoin, former governor of Maine, John Winthrop, the first governor of the Massachusetts Bay Colony, and Thomas Dudley, another of the founding members and governor of the Massachusetts Bay Colony.

Like most people with considerable colonial New England ancestry, she is related to many notable figures in American history, such as
Franklin D. Roosevelt (Kerry's 4th cousin twice removed), Jane Addams, Calvin Coolidge (Kerry's 8th cousin once removed), and ironically, George H. W. Bush (Kerry's 9th cousin once removed), and George W. Bush (Kerry's 9th cousin, twice removed). She is also is connected to the medieval royalty of Europe through her Dudley ancestors.

Winthrop died at St. Briac Sur Mer, Ille-et-Vilaine, France.

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