He was 45 years old when he was enrolled (4 [44], 6 [45], 11 [68 at death in 1873]). He was born in Penpruche [?], Scotland (6, 11).
He was living in Philadelphia when he was enrolled (4).
He was 5 feet 4-3/4 inches tall, and had a fair complexion, grey eyes, and grey hair (6).
He was enlisted and mustered into service on 18 October 1861 (1, 4, 6). He was enlisted for three years, at Philadelphia, Pennsylvania, by Captain Keyser (4, 6). He was mustered in as a private, at Philadelphia, Pennsylvania (4). He served as a private, initially in company B (1).
He was transferred to company C (1, 4).
On 10 April 1863, he was detailed as a stretcher bearer (2).
He fought at the Battle of Gettysburg (8).
He was discharged at Washington, DC, on 23 November 1863 on surgeon's certificate of disability (1, 3, 4, 5).
On 28 February 1873, he died, at Philadelphia, Pennsylvania, of natural causes (11). He was married (11). He died at, or was buried from, 412 North 24th Street, Philadelphia, Pennsylvania (11). On 4 March 1873, he was buried, at Mount Moriah Cemetery (11).
On 17 August 1875, his widow, Ann McDougell, unsuccessfully applied for a pension (9, 10).
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, 91st PA, 10 April 1863 (Alex McDougal)
3 consolidated morning report, 91st PA, 9 December 1863 (Alex McDougal)
4 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 28 June 2004 (Alex'r McDougall; rolls have 'McDougal')
5 company C, register of men discharged, number 13 (Alexander McDougall)
6 company C, descriptive roll, entry 90 (Alexander McDougall)
7 company C, untitled list, probably of status at muster out, entry 48 (Alexander McDougall)
8 Pennsylvania Memorial, Gettysburg, Pennsylvania (A McDougall)
9 pension index, by name (Alexander McDougell)
10 pension index, by regiment, 91st PA Infantry, company C (Alexander McDougall)
11 death certificate, Philadelphia, Pennsylvania, 28 February 1873 (Alexander McDougall)
[I did not find an entry for him in Ancestry's index to the 1890 veteran's census (searched May 2007)]