He was 20 years old when he enlisted in 1861 (3, 4). He was born in Philadelphia, Pennsylvania (3).
He was a brass moulder (3, 4). He was living in Philadelphia when he was enrolled (4).
He was 5 feet 4-1/2 inches tall, and had a light complexion, blue eyes, and dark hair (3 [dark hair], 4 [black hair]).
He enlisted and was mustered into service on 23 August 1861 at Philadelphia, Pennsylvania (1, 3, 4 [mustered in as corp], 7, 8). He was enlisted for three years, at Philadelphia, Pennsylvania, by Captain Starr (3). He served in company A (1).
He fought at the Battle of Gettysburg (11).
At some point--probably on 24 December 1863--he was promoted to 4th corporal (2, 8).
He reenlisted as a veteran volunteer on 26 December 1863, at Bealton, Virginia (1, 4, 8).
On 12 March 1864, he was reported under arrest (5). He returned from arrest on 21 April 1864 (6).
At some point, he was promoted to 5th sergeant (2).
On 26 October 1864, he was reported off duty (10).
He was absent, sick, when the regiment mustered out (1, 3, 4). He was then a sergeant (1). He was discharged on 16 July 1865 (7, 8 [10 Jun 65]).
On 18 July 1881 and 15 February 1907, he applied successfully for a pension (7).
In 1890, he was living at 617 Columbia Avenue, Philadelphia, Pennsylvania (8, 9). He was a laborer (9).
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 Jeffries)
2 register of non-commissioned officers, co.A (Wm Jeffreys) (several entries)
3 company A descriptive roll, entry 31 (William Jeffries)
4 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 5 May 2004 (William Jeffries)
5 consolidated morning report, 12 March 1864 (Jeffrie)
6 consolidated morning report, 91st Pennsylvania, 21 April 1864 (Jeffrey)
7 pension index, by regiment (William Jeffries)
8 1890 US census, veterans schedule, Pennsylvania, Philadelphia, Philadelphia (27th division, 20th ward), supervisor's district 1, enumeration district 426, page 2 (image 969 on <www.ancestry.com>), lines 22-23 (William Jeffries)
9 1890 Gopsill's Philadelphia directory (William Jefferys)
10 consolidated morning report, 91 Pennsylvania, 26 October 1864 (Sergt Jeffries)
11 Pennsylvania Memorial, Gettysburg, Pennsylvania (Wm Jeffries)
[I did not find a reference to him in the <www.ancestry.com> index to the pension index by name (searched Oct 2005)