in 1800-1801 fort sumner's commander was captain john henry, who resigned his command in 1801, became a spy for the british, and was later instrumental in starting the war of 1812. in 1802 the fort's commander was captain amos stoddard of the regiment of artillerists, a portland resident, who successfully kept the fort garrisoned when ordered to fort constitution in portsmouth, new hampshire by dividing his company. fort sumner was probably abandoned in the early 1820s.