He was mustered into service on 25 November 1861 (1). He was a private in company I (1, 3, 4, 5).
He was discharged on 7 February 1863 on surgeon's certificate of disability (1 [8 Feb], 2) He was a private, in company I (5).
On 3 June 1874, he unsuccessfully applied for a pension (3, 4).
On 29 November 1892, his widow, Mary Butler, successfully applied for a pension from Pennsylvania (3, 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)
2 consolidated morning report, HQ 91st PA, 8 February 1863 (Charles Butler)
3 pension index, by regiment, 91st PA Infantry, company I (Charles Butler)
4 pension index, by name (Charles Butler)
5 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (Charles Butler)