He was either 40 (13, 15) or 58 (12) years old when he enlisted in 1861 (12, 13, 18 [62 in 1882?], 20 [62 in ?1883]). He was born in Philadelphia, Pennsylvania (12, 15, 18, 20). He was about 56 years old in 1864 (2).
He was a laborer (12, 13, 15). He was living in Philadelphia when he was enrolled (13).
He was 5 feet 10-1/2 inches tall, and had a fair complexion, blue eyes, and brown hair (12 [5'9", dark complexion, gray eyes, dark hair], 13 [5'9-1/2", fair complexion, blue eyes, brown hair], 15 [5' 10-1/2", fair complexion, blue eyes, brown hair]). He was "somewhat bald" (15).
Walter describes him as 'tall, active, tough, grizzly, and slouchy', not interested in gambling or alcohol, but eating a lot and swearing (2). He also didn't like discipline, but Colonel Gregory liked him and got him out of numerous scrapes (2).
He was enrolled at Philadelphia, Pennsylvania, on 15 September 1861 (13, 15 [18 Sep 61]). He was enrolled for three years, at Philadelphia, Pennsylvania, by Captain Smith (15). He was mustered into service on 18 September 1861, at Philadelphia, Pennsylvania (1, 13). He enlisted for three years, at Philadelphia, Pennsylvania (12). He served as a private in company C (1).
At the beginning of November 1862, the Army of the Potomac moved past Snicker's Gap, Virginia. When the regimental wagon became stuck in soft ground, against a rock, Gray and two other guards were ordered to help the teamster free it. The teamster left twice when he thought he saw Confederates, and Gray and the regimental wagon were captured by the Confederates (3). He had returned to the regiment on 22 February 1863 (8).
On 8 March 1863, he was detailed as a regimental teamster (9). He returned to duty from the quartermaster department on 9 April 1863 (10).
On 9 June 1863, he was returned to duty (11).
On 2 September 1863, Sinex reported that Gray was borne on the company books as "present for duty" (4).
He reenlisted as a veteran volunteer on 26 December 1863, at Bealton, Virginia, transferring to company A (1, 2, 13 [no transfer reported]).
He was transferred to company A on 18 March 1864 (5, 14, 15, 17).
On 15 April 1864, he was one of seven men in the regimental pioneer corps (6).
He voted for McClellan (the only one in company A), because he had never voted for a successful candidate for major office, and wanted to ensure that Lincoln would win (2)!
On 17 November 1864, Sellers included him in a report "[i]n compliance with S.O. 59 dated Hd Qrs 5 Army Corps November 15" 1864" (7).
He was discharged on 16 May 1865 on surgeon's certificate of disability, signed by G [?] G [?] Hays, Surgeon, US Volunteers (1, 12, 13, 18 [44 months service], 19). He had served forty-eight months (20).
On 9 February 1882, he was admitted to the National Home for Disabled Volunteer Soldiers (18, 20). He had rheumatism (18).
In 1884, he was present at the Southern Branch (20). He had rheumatism (20). He was not receiving a pension (20).
He was present there in 1885 (18).
He died at the Southern Branch on 27 December 1883 (20).
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 T[homas] F Walter. 'Personal recollections and experiences of an obscure soldier'. Grand Army Scout and Soldiers' Mail at volume 3 number 51 page 1.
3 T[homas] F Walter. 'Personal recollections and experiences of an obscure soldier'. Grand Army Scout and Soldiers' Mail at volume 3 number 36 page 2.
4 letter, Sinex to Marvin, 2 September 1863
5 special order 22, HQ 91st PA, 18 March 1864
6 general order 8, HQ 91st PA, 15 April 1864
7 letter, Sellers to Bartlett, 17 November 1864
8 consolidated morning report, 91st PA, 22 February 1683
9 consolidated morning report, 91st PA, 8 March 1863 (Private Gray)
10 consolidated morning report, 91st PA, 9 March 1863 (Robert Grey)
11 consolidated morning report, 91st PA, 9 June 1863 (Pri Gray)
12 company A descriptive roll, entry 109 (Robert Gray)
13 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 5 May 2004 (Robert Gray; roll spells as 'Grey')
14 company C, register of men transferred (Robert Gray)
15 company C, descriptive roll, entry 36 (Robert Gray)
16 company C, untitled list, probably of status at muster out, entry 70 (Robert Grey)
17 consolidated morning report, 19 March 1864 (Robert Gray)
18 National Home for Disabled Volunteer Soldiers. Report of Managers of the National Home for Disabled Volunteer Soldiers, transmitting the report of the said board for the year ending June 30, 1884. January 5, 1885. Serial Set volume 2310, session volume 1, 48th Congress, 2nd Session, House Miscellaneous Document 11, page 216 (Robert Grey)
19 consolidated morning report, 91st Pennsylvania, 21 May 1865 (Bob Gray)
20 National Home for Disabled Volunteer Soldiers. Report of the Board of Managers of the National Home for Disabled Volunteer Soldiers, transmitting the report of the said board for the year ending June 30, 1884. January 5, 1885. Serial Set volume 2310, session volume 1. 48th Congress, second session. House Miscellaneous Document 11. Page 317 (Robert Gray)
[I did not find him in the index on <www.ancestry.com> to the 1890 veterans' census]
[I did not find him in the index on <www.ancestry.com> to the pension index by name (searched April 2006)]