[Corporal John A. Hartshorn of Company A, 19th Maine Infantry, in Union uniform sitting with bayoneted musket] / From Walton's Ambrotype & Photograph Rooms, corner of Merrimack and Pecker Streets, Haverhill, Mass.
Photograph shows identified soldier John A. Hartshorn, who volunteered to enlist in the army as a substitute for John W. Crane in August 1863. Hartshorn died on May 23, 1864 of wounds received at Cold Harbor, Virginia.
The single best source for Civil War photographs is the U.S. Library of Congress, which holds the core collections of original Civil War documentary ... The majority of the ambrotypes and tintypes are portraits by unidentified photographers of Civil War soldiers, primarily Union soldiers.