He was born in 1840/41 (4 (20 in 1861), 7 [21 at death in 1863]). He was born in Port Richmond, [Philadelphia County, Pennsylvania] (7).
He enlisted and was mustered into service on 1 October 1861 (1, 4). He enlisted at Philadelphia, Pennsylvania (4). He was mustered in, at Philadelphia, Pennsylvania, as a corporal in company I (1, 4, 10).
He was wounded on 3 May 1863 at Chancellorsville, Virginia (1, 4, 8 [missing, supposed killed], 9 [missing]). According to the post-battle report, he was killed in the battle (2). But on 16 May 1863, he was reported gained from missing in action (3).
He died at 4.30 pm on 25 June 1863, of those wounds, in Mower US General Hospital, Chestnut Hill (1 [25 May], 4, 6 [25 June], 7 [25 June]). However, according to his death certificate, he died of typhoid pneumonia with congestion (7). He was a corporal, in company I (1, 10). He was single (7). On 27 June 1863, he was buried at Philanthropic Cemetery, in Philadelphia, Pennsylvania (1, 4, 7).
On 16 July 1890, his mother, Mary Cooker, applied successfully from Pennsylvania for a pension (5, 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) (John R Cooker)
2 consolidated morning report, 91st PA, 7 May 1863 (Corpl Cooker)
3 consolidated morning report, 91st PA, 16 May 1863 (Corpl Cooker)
4 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 28 March 2005 (John R Cooker)
5 pension index, by name (John R Cooker)
6 pension index, by regiment, 91st PA Infantry, company I (John R Cooker)
7 death certificate, Philadelphia, Pennsylvania, 25 June 1863 (John R Cooker)
8 'The ninety-first Pennsylvania volunteers', Philadelphia Press, Wednesday 13 May 1863, page 2 (John Cooker)
9 'The Ninety-first Pennsylvania at Chancellorville', Philadelphia Inquirer 13 May 1863, page 8 (John Cooker)
10 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (John R Cooker)