He was born in 1845/46 (2 (18 in 1864)). He was born in Bedford County, Pennsylvania (2).
When he enlisted, he was a laborer (2).
When he enlisted, he was 5 feet 6 inches tall, and had a dark complexion, brown eyes, and dark hair (2).
He was a substitute (1, 2). He enlisted and was mustered into service on 8 October 1864 (1, 2). He was enlisted for one year, at Chambersburg, Pennsylvania (2). His service was credited to the Sixteenth Congressional District (2). He was a private in company H (1, 6, 7, 8).
He mustered out with his company on 10 July 1865 (1). He was a private, in company H (6, 7, 8).
In 1890, he was living in Pleasant, Seneca County, Ohio (3).
On 28 April 1891, he successfully applied from Ohio for a pension (4, 5).
He died in June 1895, at Fort Seneca, Ohio (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) (David H Kelly)
2 company H, descriptive roll, #134 (David H Kelley)
3 1890 US census, veterans' schedule, Ohio, Seneca County, Pleasant, supervisor's district 1, enumeration district 29 [?], page 4 (David W (H) Kelly)
4 pension index, by name (David W [sic] Kelly)
5 pension index, by regiment, 91st PA Infantry, company H (David W [sic] Kelly)
6 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (David H Kelly)
7 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (David W Kelley)
8 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (David H Kelley)
I have assumed he is the same person as the Davis H Kelly Bates claims enlisted in company H on 24 September 1861, since neither the descriptive books nor the index to the compiled service records mentions a Davis Kelly.