He was 19 years old when he enlisted (8 [22 probably when he reenlisted]). He was born in Philadelphia, Pennsylvania (8).
He was 5 feet 3-1/2 inches tall, and had a fair complexion, blue eyes, and brown hair (8). He had 'M.D.' in blue on his right arm, and had heavy eyebrows (8).
He enlisted and was mustered into service on 16 September 1861 (1, 8). He was enlisted for three years, at Philadelphia, Pennsylvania, by Captain Smith (8). He served in company C (1).
He fought at the Battle of Gettysburg (10).
He reenlisted as a veteran volunteer (1).
On 5 November 1864, he was promoted to corporal, effective 1 November 1864 (4, 9).
He may be the Michael Deveraux who went on a furlough on 18 January 1865, which ended on 28 January 1865 (6).
He saved the regimental colors on 6 February 1865 at Hatcher's Run, Virginia, by 'stripping them from the staff and concealing them on his person' (2).
On 26 March 1865, he was promoted from corporal to sergeant, effective 1 March 1865 (1, 5, 7).
He mustered out on 10 July 1865 with his company (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)
2 'Address of Chaplain Joseph Welch'. In Pennsylvania at Gettysburg. Volume 1: 1914, Pages 500-507, at page 506.
3 Advance the colors, p.314.
4 special order 104, HQ 91st PA, 5 November 1864
5 special order 22, HQ 91st PA, 26 March 1865 (Thomas Deveraux)
6 enlisted men's furloughs (Michael Deveraux)
7 company C, List of non-commissioned officers, page 2, sergeants (Thomas Deveraux)
8 company C, descriptive roll, entry 27 (Thomas Devraux)
9 consolidated morning report, 91st Pennsylvania, 7 November 1864 (Privt Devereux)
10 Pennsylvania Memorial, Gettysburg, Pennsylvania (Thomas Deveraux)
[I did not find an entry for him in the index on <www.ancestry.com> to the pension index by name (searched December 2006)]