Bates (1) and the pension index (3) have McCalla, but the interment index (2) has McCaulla.
He was born in 1825/26 (6 (35 in 1861), 7 (37 in 1863), 9 (80 in ?1892), 11 (69 in ?1889), 13 (75 at death in 1893)). He was born in Montgomery County, Pennsylvania (6, 7, 9).
When he enlisted, he was a machinist (6, 7).
When he enlisted, he was 5 feet 10-3/4 inches tall, and had a dark complexion, blue eyes, and brown hair (6, 7 [5'11", dark hair]).
He enlisted on 2 December 1861 (6). He was enlisted for three years, at Philadelphia, Pennsylvania, by Captain Lentz (6). He was a private, in company G (15).
On 26 June 1862, he was in Prince-Street Hospital, Alexandria, Virginia (14). He had ruptured (14).
He fought at the Battle of Gettysburg (8).
He was a witness at the court martial of Morris Kayser, some time in August 1863 (4).
He was mustered into service as a veteran volunteer on 26 December 1863, as a private (1, 7). He was enlisted for three years, by Lieutenant Swan, at Bealton, Virginia (7). He was a private in company G (1, 3).
He was wounded on 8 May 1864 at Laurel Hill, Virginia (1, 10).
He was transferred to the Veterans' Reserve Corps, company 131 battalion 2 (1, 3, 5, 12). When he was transferred, he was a private, in company G (15).
He served for 42 months (9, 13 [48 months]).
He applied successfully for a pension on 28 December 1868 (3, 12).
On 23 February 1889, he was admitted to the Pennsylvania Home for Disabled Volunteer Soldiers and Sailors (11). He was admitted from Philadelphia (11). He had a gunshot wound (11). He was receiving a pension of $6 per month (11). He was a farmer, and was married (11).
By 1890, he had been discharged from the Pennsylvania Home (11).
On 13 April 1892, he was admitted to the National Soldiers Home (9). He was admitted from New Jersey (9). He had wounds (9).
On 1 April 1893, he was discharged from the Southern Branch of the National Soldiers Home (9). He was receiving a pension of $8 per month (9).
He died of catarrhal jaundice and alcoholism, in Philadelphia Hospital, Philadelphia, Pennsylvania, on 15 October 1893 (2, 12 [17 Oct], 13). He was a laborer (13). He was a widower (13). On 26 October 1893, he was buried in plot 115 of the Philadelphia National Cemetery (2, 13). He was buried from 257 Park [?] Street (13).
His widow, Eliza McCalla, applied successfully from Pennsylvania for a pension on 20 May 1895 [?] (3, 12).
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 Philadelphia National Cemetery interment records (searched 8 Nov 2000)
3 Veterans' administration. Pension index, by name. (Searched 12 Jan 2001, on Ancestry.) (William McCalla)
4 charges and specifications preferred against Morris Kayser.
5 company G, register of men transferred (Wm McCalla)
6 company G, descriptive roll, entry 54 (William McCalla)
7 company G, second descriptive roll, entry [20] (William McCalla)
8 Pennsylvania Memorial, Gettysburg, Pennsylvania (William McCalla)
9 Report of the Board of Managers of the National Home for Disabled Volunteer Soldiers for the fiscal year ended June 30, 1893. Serial Set volume 3151, session volume 1, 53rd Congress, 1st Session. House Miscellaneous Document 35. Page 717. (Wm McCalla)
10 'The Ninety-first Pennsylvania volunteers', Philadelphia Inquirer 8 June 1864 page 3 (William McCalla)
11 Report of the Board of Managers of the National Home for Disabled Volunteer Soldiers for the fiscal year ending June 30, 1890. Serial Set volume 2869, session volume 1, 51st Congress, 2nd Session. House Miscellaneous Document 38] (William McCauley)
12 pension index, by regiment, 91st PA Infantry, company G (William McCalla)
13 death certificate, Philadelphia, Pennsylvania, 15 October 1893, #8571 (William McCalla)
14 'The sick and wounded Pennsylvania soldiers in Washington', Philadelphia Press Saturday 28 June 1862, page 1 (Wm McCauley)
15 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (William McCalla)