John Sullivan (February 17, 1740 – January 23, 1795) was the third son of Irish immigrants, an American general in the Revolutionary War, a delegate in the Continental Congress and a United States federal judge.
Sullivan served as a major general in the Continental Army and as Governor (or "President") of New Hampshire. He commanded the Sullivan Expedition in 1779, a scorched earth campaign against the Iroquois towns that had taken up arms against the American revolutionaries.
Born in Somersworth, New Hampshire, Sullivan was the third son of a schoolmaster. He read law with Samuel Livermore of Portsmouth, New Hampshire, and began its practice in 1764 when he moved to Durham. He annoyed many neighbors in his early career, when he was the only lawyer in town, with numerous suits over foreclosures. But by 1772, he was firmly established and began work to improve his relations with the community. In 1773 Alexander Scammel joined John Sullivan's law practice.