UNDERHILL, John, colonist, born in Warwickshire, England; died in Oyster Bay, Long Island, New York, about 1672. He served in the Netherlands and at Cadiz, came to New England with John Winthrop in 1630, and was a representative in the assembly from Boston. He was appointed by Sir Henry Vane to command the colony's troops, and with Captain John Mason destroyed the Indian forts at Mystic in 1637 and broke the power of the Pequots. Being banished from Boston on account of his religious opinions, he went to England and was made in 1641 governor of Exeter and Dover, but returned to this country, removed to Stamford, Connecticut, and afterward in 1646 to Flushing, Long Island. He was a delegate to the court in New Haven in 1643, was assistant justice there, and held an important command during the hostilities with the Dutch and Indians, 1643-'6. In 1665 he was a delegate from Oyster Bay to Hemp-stead, and he was at one time under-sheriff of the North Riding of Yorkshire. The Mantinenoc Indians gave him 150 acres of land, which is still owned by his descendants. He published "He wes from America," an account of the Pequot war (London, 1638).