 Billy Porter’s company of minutemen, Col. John Baker’s regiment, which marched on the alarm of April 19, 1775, serving five days but arriving too late to see the Battles of Lexington and Concord.When Matthew came home, he enlisted at Gloucester (MA) in Col. Samuel Gerrish’s Regiment, and was stationed at Chelsea from early May through December of 1775, being promoted to lieutenant by early June.While stationed at Chelsea, Matthew was part of the Siege of Boston and was at the Battle of Chelsea Creek (May 27 and 28) and the Battle of Bunker Hill (June 17).