He was born in 1844/45 (2 (19 in 1864), 6 (19 at death)). He was born in Philadelphia, Pennsylvania (2). He was born to James McDermott and Winifred [unknown family name] (6).
When he enlisted, he was a lead pounder (2).
When he enlisted, he was 5 feet 5-1/2 inches tall, and had a fair complexion, blue eyes, and brown hair (2).
He enlisted and was mustered into service on 12 January 1864 (1, 2). He was enlisted for three years, at Philadelphia, Pennsylvania, by Captain Stretch (2). He was a private in company A (1, 8-9).
On 7 November 1864, his mother, Winifred McDermott, applied successfully for a pension (4, 5, 7).
On 4 May 1876, his brother (or a minor dependent), Henry Foster, also applied successfully for a pension (4, 5, 7).
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) (Thomas McDermot)
2 company A descriptive roll, entry 113 (Thomas McDermot)
3 consolidated morning report, 91st Pennsylvania, 29 June 1864 (Private McDermott)
4 pension index, by regiment (Thomas McDermott)
5 pension index, by name (Thomas McDermott)
6 death notice, Public Ledger 25 June 1864 page 2 (Thomas McDermott)
7 mother's pension certificate file, National Archives and Record Administration, RG 15, certificate 45,529 (cross-reference to certificate 176,018), mother of Thomas McDermott
8 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (Thomas A McDermit)
9 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (Thomas McDermott)
McDERMOTT--On the 18th [?] instant of wounds received on the morning [?] of the 18th [?] while charging on the rebel works in front of Petersburg THOS McDERMOTT, of Co. A, 91st Reg't, P V V., in the 19th year of his age son of James and Winnifred McDermott.