He was 23 years old when he enlisted (3 [26 in 1863], 9 [23]). He was born in Philadelphia, Pennsylvania (3, 9).
When he enlisted, he was a laborer (3, 9). He was living in Philadelphia when he was enrolled (9).
He was 5 feet 7-1/2 inches tall, had a dark complexion, grey eyes, and dark hair (3, 9 [5'8", dark complexion, gray eyes, brown hair]).
He was enrolled and mustered into service as a private in company E on 4 September 1861, at Philadelphia, Pennsylvania (1, 9).
He deserted on 21 August 1862, at Alexandria Virginia (4). On 13 March 1683, he returned to duty under the president's proclamation (4). He was first present with the regiment on 24 March 1863 (8).
He fought in the battle of Gettysburg (5).
He re-enlisted for three years, as a veteran volunteer, at Bealton Virginia, on 24 December 1863 (1, 3). He was enlisted by Lieutenant Carpenter, and mustered into service by Lieutenant Swann (this may relate to his original enlistment) (3).
On 1 March 1864, Colonel Gregory detached him to collect conscripts, at Philadelphia (6).
He was killed in action on 18 June 1864 at Petersburg Virginia, by being shot in the throat while charging the enemy's works (1, 2, 3, 9, 10, 13). He was buried on 23 November 1864, in Cathedral Cemetery, Philadelphia, Pennsylvania (13).
On 26 January 1865, company E published resolutions mourning his death (and fifteen others), and sympathizing with their families (11).
On 11 August 1864, his mother applied successfully for a pension (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)
2 list of deaths, company E
3 descriptive roll, company E, entry 61 (Barney McNulty)
4 register of deserters, company E, entry 9
5 Pennsylvania Memorial, 91st Pennsylvania plaque, Gettysburg, Pennsylvania (Barney McNulty)
6 letter, Sinex to Marvin, 7 March 1864
7 special order 13, HQ 91st PA, 1 March 1864
8 consolidated morning report, 91st PA, 24 March 1863 (Barney McNulty)
9 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 6 May 2004 (Barney McNulty)
10 consolidated morning report, 91st Pennsylvania, 29 June 1864 (Private McNulty)
11 'Headquarters company E', Philadelphia Inquirer 26 January 1865 page 5 (Barney McNulty)
12 pension index, by regiment, 91st PA Infantry, company E (Bernard McNulty)
13 death certificate, Philadelphia, Pennsylvania, 18 June 1864 (Barney McNulty)
[I did not find an entry for him in the Ancestry index to the 1890 veterans' census (searched April 2006)]
[I did not find an entry for him in the Ancestry index to the pension index by name (searched April 2006)]