Fortifications

Fort Baker (1861-1865) - A Union U.S. Civil War Fort established in 1861 in Southeast Washington DC. Named Fort Baker after Colonel Edward Dickinson Baker who was killed at Balls Bluff 21 Oct 1861. One of the ring of Union fortifications surrounding Washington DC during the U.S. Civil War, see Washington DC Fort Ring.

Established in August 1861 as an earthwork with a perimeter of 492 yards and emplacements for 22 guns. Armament included three 8" siege guns, two 24 pounder howitzers, eight 10" Parrott rifles, and seven 24 pounder smoothbore cannons.  ( Source - Fortwiki )