He was born in 1845/46 (4 (19 in 1865)).
He was a substitute (1, 4). He enlisted and was mustered into service on 24 March 1865 (1, 4, 5 [4 Mar], 6). He was mustered in as a private, at Hollidaysburg, Pennsylvania (4). He was a private in company B (1, 8-9).
He may have been charged for lost equipments, perhaps when the regiment mustered out (2). (His name is crossed out on a second list (3).)
In 1890, he was living in Warriors Mark, Huntingdon County, Pennsylvania (5). He had had rheumatism (5).
On 24 July 1895, he successfully applied from Pennsylvania for a pension (6, 7).
He died on 5 January 1898 (6).
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 J Robinson)
2 list of men who owed money [?] (Robinson)
3 list of men who owed money [?], page 2, number  (Robinson)
4 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 25 June 2004 (Wm J Robinson)
5 1890 US census, veterans' schedule, Pennsylvania, Huntingdon County, Warriors Mark Township and Birmingham Borough, supervisor's district 7, enumeration district 165, page 1 (William J Robison [sic])
6 pension index, by regiment (William J Robison [sic])
7 pension index, by name (William J Robison [sic])
8 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (William J Robison)
9 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (William J Robinson)