He was born in 1839/40 (2 (25 in 1865)). He was born in Donegal, Ireland (2).
When he enlisted, he was a laborer (2).
When he enlisted, he was 5 feet 9 inches tall, and had a dark complexion, dark eyes, and dark hair (2).
He enlisted and was mustered into service on 6 February 1865 (1, 2, 3, 4, 5). He was enlisted for one year, at Norristown, Pennsylvania, by Captain Yerkes (2). He was a private in company D (1, 7).
He mustered out with his company on 10 July 1865 (1, 3 [12 Jul], 5). He was a private, in company D (7).
In 1890, he was living at 528 Walnut Street, Philadelphia, Pennsylvania (3). He had been shot in the hand at Gettysburg (3).
On 9 October 1891, he successfully applied for a pension (5, 6).
He again applied for a pension on 18 February 1907 (5).
He died on 30 January 1922, at Lansdowne [?], [Delaware County], Pennsylvania (5).
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) (John Clark)
2 company D, [second] descriptive roll, entry 107 (John Clark)
3 1890 US census, veterans' schedule, Pennsylvania, Philadelphia, Philadelphia, supervisor's district 1, enumeration district 619, page [3] (image 2024 on Ancestry) (John J Clark)
4 consolidated morning report, 91st Pennsylvania, 15 February 1865 (Recruit Clark)
5 pension index, by regiment, 91st PA Infantry, company D (John Clark)
6 pension index, by name (John Clark)
7 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (John C Clark)