He was 19 years old when he was enrolled (6).
He was living in Philadelphia when he was enrolled (6).
He was enrolled and mustered into service as a private on 4 November 1861, at Philadelphia, Pennsylvania (1, 6). He served in company B (1).
He was promoted to corporal (3, 6).
He was killed in action on 3 May 1863 at Chancellorsville, Virginia (1, 3, 4, 6 ["supposed to have been killed"]). He was then a corporal (1, 2, 4).
He was reported missing in action on 7 May 1863 (2).
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) (Thomas Patterson)
2 consolidated morning report, 91st PA, 7 May 1863 (Corpl Patterson)
3 list of non-commissioned officers, co.B (Thomas Patterson)
4 company B Register of deaths (Thomas Patterson)
5 company B [first] descriptive roll, entry 9 (Thomas Patterson) [no information]
6 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 30 May 2004 (Thomas Patterson)