He was born in 1830 (8; 2 (35 in 1865), 3 (35 in 1865)). He was born in Pennsylvania (2).
When he enlisted, he was a la[borer?] (2).
When he enlisted, he was 5 feet 9 inches tall, and had a fair complexion, blue eyes, and dark hair (2).
He was a substitute (1, 3). He enlisted and was mustered into service, at Hollidayburg, Pennsylvania, on 24 March 1865 (1, 2, 3, 4). He was enlisted for one year by Captain Lloyd (2). He was mustered in as a private in company C (1, 3, 8, 9, 10).
On 12 July 1890, his widow, Anna M Keller, successfully applied from Pennsylvania for a pension (5, 7).
In 1890, his widow, Mary Keller, was living on Water Street, in Franklin, Huntingdon County, Pennsylvania (4).
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) (William B Keller)
2 company C, descriptive roll, entry 168 (William B Heller) [The letter looks more like the other 'K's than 'H's, but it's not quite the same as them either]
3 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 13 July 2004 (William B Keller)
4 1890 US census, veterans' schedule, Pennsylvania, Huntingdon, Franklin, supervisor's district 7, enumeration district 167, page 2 (William B Keller)
5 pension index, by name (William B Keller)
6 Keller Church, Canoe Valley, Catharine Township, Blair County, PA [cemetery abstract, available on Blair County Pennsylvania US GenWeb Archives (viewed January 2005) (Wm B Keller)
7 pension index, by regiment, 91st PA Infantry, company C (William B Keller)
8 Page 215. Floyd G Hoenstine. Military services and genealogical records of soldiers of Blair County, Pennsylvania. Harrisburg, PA: Telegraph Press, 1940. (William B Keller)
9 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (William B Keller)
10 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (William B Kelly)