He was 23 years old when he enlisted in 1861 (8, 11 [31 in 1870], 12 [41 in 1880], 15 [42 at death in 1881]). He was born in Philadelphia, Pennsylvania (8, 11, 12, 15).
He was a carpenter (8).
He was 5 feet 10-1/2 inches tall, and had a light complexion, light eyes, and light hair (8).
He enlisted and was mustered into service on 20 August 1861 as a corporal in company A (1, 7, 8, 9). He was enlisted for three years, at Philadelphia, Pennsylvania, by Captain Starr (8).
At some point, he was promoted to commissary sergeant (7). At some point, he was reduced to the ranks (7).
On 8 September 1863, Sinex reported that he was in Philadelphia and able to rejoin the regiment, and requested his return (3).
On 26 September 1863, he was reported regained from duty in hospital (5).
On 30 December 1863, Sinex reported that he was one of 38 men who had less than fifteen months to serve and were not willing to reenlist (4). On 2 January 1864, he was transferred to the 155th Pennsylvania Infantry, while those eligible were on veterans' leave (6).
He was wounded on 10 May 1864 at Spottsylvania Court House, Virginia (1, 14).
He was discharged on 24 September 1864 on surgeon's certificate of disability (1, 8, 9 [23 Sep 64], 13).
He applied successfully for a pension on 18 January 1866 (2, 10).
In 1870, he was living in the 14th ward of Philadelphia, Pennsylvania (11). He was a carpenter, and owned $100 in personal property (11). He was living with his wife Jane, son Jacob, and May McClintock (11).
In 1880, he was living at 1231 [?] Melon [??] Street, Philadelphia, Pennsylvania (12). He was a carpenter (12). He was living with his wife Jenny and two sons (12).
He died on 1 November 1881, of a carbuncle (15). He was married. He died at, or was buried from, 1231 Mellon Street, Philadelphia, Pennsylvania (15). He was buried on 4 November 1881, at Mount Moriah Cemetery (15).
Jane Geisenhoffer, his widow, applied successfully from Pennsylvania for a pension (2, 10).
In 1890, his widow, Jane Geisenhoffer, was living at 1231 Melon Street, Philadelphia, Philadelphia, Pennsylvania (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)
2 pension index, by regiment (Jacob D Geisenhoffer)
3 letter, Sinex to Marvin, 8 September 1863
4 letter, Sinex to Marvin, 30 December 1863
5 consolidated morning report, 91st PA, 26 September 1863 (Pri Geisenhoffer)
6 consolidated morning report, 91st PA, 2 January 1864 (Geisenhoffer)
7 register of non-commissioned officers, co.A (Jacob D Geisenhoffer) [2 entries]
8 company A descriptive roll, entry 90 (Jacob D Geisenhoffer)
9 1890 US census, veterans' schedule, Pennsylvania, Philadelphia, Philadelphia (13th division, 14th ward), supervisor's district 1, enumeration district 251 (image 1462 of 2610 on <www.ancestry.com>) (Jacob D Geisenhoffery [sic])
10 pension index by name (Jacob D Geisenhoffer)
11 1870 US census, Pennsylvania, Philadelphia, 41st district 14th ward, microfilm series M593, film 1398, page 140 = 121 handwritten (Jacob Geisenhoffer)
12 1880 US census, Pennsylvania, Philadelphia, supervisor's district 1, enumeration district 239, microfilm series T9, film 1174, page 529 = page 15 handwritten (Jacob D Geisenhoffer)
13 consolidated morning report, 91st Pennsylvania, 1 November 1864 (Geisenhoffer)
14 'The Ninety-first Pennsylvania volunteers', Philadelphia Inquirer 8 June 1864 page 3 (Jacob D Geisenhoffer)
15 death certificate, Philadelphia, Pennsylvania, Jacob Geissenhoffer, 1 November 1881 (Jacob Geissenhoffer)
| line | 30 | 31 | 32 | 33 |
| Dwelling-house number | 867 | |||
| Family number | 899 | |||
| Name | Geisenhoffer Jacob | - Jane | - Jacob | McClintock May |
| Age | 31 | 27 | 1/12 | 64 |
| Sex | M | F | M | F |
| Color | W | W | W | W |
| Occupation | Carpenter | keeping house | without occupat | |
| Real estate value | ||||
| Personal estate value | 100 | |||
| Birthplace | Penna | Penna | Penna | Penna |
| Father foreign born | 1 | 1 | ||
| Mother foreign born | 1 | |||
| Birth month if born within year | May | |||
| Marriage month if married within year | ||||
| Attended school past year | ||||
| Can't read | ||||
| Can't write | ||||
| Deaf, dumb, blind, etc. | ||||
| Male US citizen at least 21 years old | 1 | |||
| Male US citizen at least 21 years old who can't vote ... |
| line | 42 | 43 | 44 | 45 |
| street name | North Side Melon [?] Street | |||
| house number | 1231 [?] | |||
| dwelling visit # | 123 | |||
| family visit # | 135 | |||
| name | Geisenhoffer Jacob D | - Jenny | - Jacob D Jr | - Henry [?] C. |
| color | W | W | W | W |
| sex | M | F | M | M |
| age | 41 | 36 | 10 | 9 |
| month born if born in year | ||||
| relationship | wife | son | son | |
| single | 1 | 1 | ||
| married | 1 | 1 | ||
| widowed/divorced | ||||
| married during year | ||||
| occupation | Carpenter | Keeping House | At School | At Home |
| months unemployed | ||||
| currently ill? | ||||
| blind | ||||
| deaf/dumb | ||||
| idiotic | ||||
| insane | ||||
| disabled | ||||
| school this year | 1 | |||
| can't read | ||||
| can't write | ||||
| birthplace | Pennsylvania | Ireland | Pennsylvania | Pennsylvania |
| father's birthplace | France | Ireland | Pa | Pa |
| mother's birthplace | Pa | Ireland | Ireland | Ireland |