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of New Hampshire
Born in Somersworth, New Hampshire, Sullivan was the third son of Irish settlers from the Beara Peninsula in County Kerry ; his father John Owen Sullivan was a schoolmaster. One of his brothers, James Sullivan , became Governor of Massachusetts. Another brother, Benjamin, who served in the Royal Navy died before the American Revolution. Their father, John Owen ("Eoghan") O'Sullivan was the son of Philip O'Sullivan of Beare of Ardea, minor gentry in Penal Ireland and a scion of the O'Sullivan Beare Clan, Ardea Castle line. The Penal Laws reduced them (as Catholics) to the status of peasants. 
In 1760, Sullivan married Lydia Remick Worster of Kittery, now in Maine. John and Lydia Sullivan had six children, Margery, who died in infancy, Lydia, John, James, George and another Margery, who lived only two years.
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John is 30 degrees from Jelena Eckstädt, 10 degrees from Theodore Roosevelt and 15 degrees from Victoria of the United Kingdom of Great Britain and Ireland on our single family tree. Login to find your connection.