He was 22 years old when he was enlisted (2).
He was enlisted and mustered into service on 1 October 1861 (1, 2). He was enlisted at Philadelphia, Pennsylvania (2). He was mustered in as a private, at Philadelphia, Pennsylvania (2). He served as a private in company D (1).
He was not on the muster-out roll when the regiment mustered out (1).
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 Duffy)
2 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 8 August 2004 (James Duffy)