New England colonist, born in Leyden, Holland, in 1614. He was the son of Edward Southworth, a merchant, who was intrusted with the business interests of the Leyden Pilgrims, and who died in 1621. Constant Southworth was taken to Plymouth, MA, in 1621, by his widowed mother, Alice (Carpenter) Southworth, who was afterward married to Governor William Bradford. He was carefully educated; became a magistrate, and several times represented the colony in the legislature. He was one of the founders of Duxbury; was for a time assistant governor of Plyouth, and governor of the colony at Kennebec. He was supposed to have written the supplement to New England’s Memorial, the work of his cousin, Nathaniel Morton. He died at Duxbury, MA.
