He was 19 years old when he enlisted in 1861 (4). He was born in Philadelphia, Pennsylvania (4).
He was 5 feet 4-1/2 inches tall, and had a light complexion, blue eyes, and light hair (4).
He enlisted and was mustered into service on 17 September 1861 (1, 4). He was enlisted for three years, at Philadelphia, Pennsylvania, by Captain Smith (4). He served in company A (1).
He was killed on 3 May 1863 at Chancellorsville, Virginia (1, 3, 4). He was then a corporal (1, 2, 3). 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) (Samuel W Wilson)
2 consolidated morning report, 91st PA, 7 May 1863 (Corpl Wilson)
3 company A register of deaths (Samuel W Wilson)
4 company A descriptive roll, entry 62 (Samuel W Willson)
[I did not find an entry for him in the index on <www.ancestry.com> to the 1890 veterans' census (searched November 2005)