Public domain
District of Columbia. Officers of Companies A and B, 3d Massachusetts Heavy Artillery, before quarters at Fort Totten
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineDistrict of Columbia. Officers of Companies A and B, 3d Massachusetts Heavy Artillery, before quarters at Fort Totten. 1865. Smith, William Morris. Civil War Glass Negatives, Library of Congress. Public domain.