Organized at Camp Curtin, Harrisburg, April 26, and duty there till May 9.
Service & Battles - 1861
At Lancaster, Pa., till June 3, and at Chambersburg, Pa., till June 16.
Attached to Negley's 5th Brigade, Keim's 2nd Division, Patterson's Army.
Moved to Hagerstown June 16, and to Williamsport June 18.
Affair with Ashby's Cavalry July 2 (Co. "I" captured).
Occupation of Martinsburg, Va., July 3.
Advance on Bunker Hill July 15.
At Charlestown July 17-25.
At Carlisle, Pa., July 27-August 8.
Mustered out August 8, 1861
15th PA Regiment Medal of Honor Recipients
CARSON, WILLIAM J. Musician, Company E, 1st Battalion, 15th Pennsylvania Infantry. Chickamauga, Ga., 19 September 1863. Citation: 27 January 1894. At a critical stage in the battle when the 14th Corps lines were wavering and in disorder he on his own initiative bugled "to the colors" amid the 18th U.S. Infantry who formed by him, and held the enemy. Within a few minutes he repeated his action amid the wavering 2nd Ohio Infantry. This bugling deceived the enemy who believed reinforcements had arrived. Thus, they delayed their attack.