This document, signed by Benjamin Greenleaf of the Newburyport Committee of Safety, officially promotes Zachariah Fitch to the position of Captain, a role which enabled him to lead a company of Groton militiamen to Fort Ticonderoga. Born in 1734, Captain Fitch served as a First Lieutenant in a company of minutemen who marched to Lexington and Concord on April 19th, 1775.