The Harbor Defenses of Portsmouth was a United States Army Coast Artillery Corps harbor defense command. It coordinated the coast defenses of Portsmouth, New Hampshire and the nearby Portsmouth Naval
Fort William and Mary by Wolfgang William Romer (1705).
Fort Constitution in the 19th century.
Battery Farnsworth, 8-inch disappearing gun emplacement, Fort Constitution.
12-inch (305 mm) disappearing gun emplacement, Fort Stark.
The 8th Coast Artillery Regiment was a Coast Artillery Corps regiment in the United States Army, which garrisoned the Harbor Defenses of Portland, Maine 1924–1944, and the Harbor Defenses of Portsmout
Coat of arms