He was 20 years old when he was enrolled (9, 10 [23 in 1863], 11 [23 in 1863]). He was born in Ireland (11).
He was a clerk (9, 10, 11). He was living in Philadelphia, Pennsylvania, when he was enrolled (9).
He was 5 feet 8 inches tall, and had a dark complexion, blue eyes, and light hair (9, 10, 11).
He was enrolled and mustered into service as a private on 5 November 1861, at Philadelphia, Pennsylvania (1, 9, 12). He served as a musician in company B (1).
He fought at the Battle of Gettysburg (13).
He reenlisted as a veteran volunteer on 24 December 1863, at Bealton, Virginia (1, 10 [25 Dec], 11 [25 Dec]). He was enlisted for three years by Lieutenant Carpenter, and mustered by Lieutenant Swan (11).
On 22 February 1864, the superintendent of the volunteer recruiting service detached him for duty in the recruiting service, at Chester, Pennsylvania (3, 5, 14 [Chester Hospital]). On 27 April 1864, Sinex asked that he be returned to the regiment (4). He was still there in May 1864 (14).
On 8 June 1864, he was detailed for duty in Brigade headquarters (6).
On 7 March 1865, he went on a furlough, which ended on 22 March 1865 (7). He returned on 25 [?] March 1865 (7).
He mustered out on 10 July 1865 with his company (1, 9, 12).
On 23 [?] April 1903, he successfully applied from Ireland for a pension (2, 12).
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) (Patrick Byrne)
2 pension index, by name. (Searched 8 May 2001, on <www.ancestry.com>)
3 letter, Sinex to Marvin, 7 March 1864
4 letter, Sinex to Marvin, 27 April 1864
5 special order 9, HQ 91st PA, 22 February 1864
6 special order 41, HQ 91st PA, 8 June 1864
7 enlisted men's furloughs (Patrick Byrne)
8 company B [first] descriptive roll, entry 11 (Patrick Byrne) [no information]
9 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 30 May 2004 (Patrick Byrne)
10 company B, [second] descriptive book, entry 4 (Patrick Byrne)
11 company B, [third] descriptive roll, entry 6 (Patrick Byrne)
12 pension index, by regiment (Patrick Byrne)
13 Pennsylvania Memorial, Gettysburg, Pennsylvania (Patrick Byrne)
14 monthly return, company B, May 1864 (Patrick Byrne)
[I did not find an entry for him in Ancestry's index to the 1890 veterans' census (searched November 2005)]