He was born in Mexico, [Juniata County,] Pennsylvania (4). He was 45 years old when he was enlisted (4).
He was a farmer when he was enlisted (4).
He was 5 feet 6 inches tall, and had a dark complexion, blue eyes, and dark hair (4).
He was enlisted and mustered into service on 22 November 1861 (1, 4). He was enlisted for three years, at Philadelphia, Pennsylvania, by Captain Fetter (4). He initially served as a private in company G (1).
He was transferred on 4 December 1861 to company F (1, 5).
He was discharged from Franklin Square Barracks, Washington, DC, on 26 or 28 March 1862 on surgeon's certificate of disability, due to "Stricture of Urethra caused by the kick of a horse" (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)
2 Discharge papers, Joseph Campbell, Co. F, sold on eBay, November 2000
3 company F, register of men discharged (Joseph Campbell)
4 company F, descriptive roll, #88 (Joseph Campbell)
5 company G, register of men transferred (Joseph Campbell)