He was 19 years old when he was enlisted (4).
He was enlisted and mustered into service on 16 or 17 August 1861 (1 [17 Aug], 4 [16 Aug]). He was enlisted at Philadelphia, Pennsylvania (4). He was mustered in as a private, at Philadelphia, Pennsylvania (4). He served as a private in company D (1).
He deserted on 4 August 1862, at Alexandria, Virginia (1, 2, 3, 4).
1 Bates, Samuel Penniman. History of Pennsylvania volunteers, 1861-5. Harrisburg: B. Singerly, state printer, 1869-71. 5 volumes. 'Ninety-first regiment', volume 3, pages 186-233. (In the roster) (James Campbell)
2 company D, register of deserters (James Cambell [sic])
3 company D, register of deserters (Isaac Campbell [sic])
4 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 27 July 2004 (James Campbell)