I have assumed that the Thomas C Thomas who served in the 91st is the Thomas C Thomas who married Julia and lived in Chicago. See the note below for more about that assumption.
He was born in October 1842, in Pennsylvania. [sources: date: 8 (Oct 1842); 5 (40 in 1880), 6 (26 in 1862). place: 5, 8]
When he enlisted, he was living in Mifflin County, Pennsylvania. [source: 6]
He enlisted and was mustered into service as assistant surgeon on 12 September 1862, at Washington, DC. He was enlisted and mustered by Captain Wood. [sources: 1, 2, 3, 6 (15 Sept), 9, 12]
He was dismissed for "absence without 'reason' [?]" by a general order 28, paragraph 1, dated 5 March 1863. He was an assistant surgeon. [sources: 3, 4, 6, 9; 1, and 2 have him dismissed 14 May 1863; 12 (by GO 20 5 March 1865)]
In 1879/80, he married Julia S [unknown family name]. This was apparently his second marriage. In 1900, she reported having had one child, who was still alive. [sources: 5, 8, 10]
In 1880, he was living at 210 N Clark, Chicago, Cook County, Illinois. He was a physician. He was living with his wife, Julia, and his children Mary, John, and Maggie. [source: 5]
In 1900, he was living on Atlantic Street, Richwoods Township, Peoria County, Illinois. He was living with his wife Julia, and children George and Margaret. He was a physician. [source: 8]
I suspect he is not the Thomas Thomas who died on 15 October 1903, and was buried in Forest Hill Cemetery, Scranton, Lackawanna County, Pennsylvania. (See the note below for more discussion.) [source: 7]
In 1910, Julia Thomas was living on East Republic, in ward 2, Peoria, Illinois. She was living with her son George and his wife Hazel. [source: 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 Official Army Register (Thomas C Thomas)
3 Regimental descriptive book (Thomas C Thomas)
4 consolidated morning report, 91st PA, 19 March 1863 (Asst Surg Thomas)
5 1880 US census, Illinois, Cook County, Chicago, supervisor's district 1, enumeration district 187, microfilm series T9, film 199, page 378 A = 37 handwritten (Thomas C Thomas)
6 Civil War Veterans' Card File, available at the Pennsylvania State Archives, searched 5 May 2004 (Thomas C Thomas)
7 Pennsylvania veterans burial records, available on Ancestry (transcribed 4 December 2010) (Thomas C Thomas)
8 1900 US census, Illinois, Peoria County, Richwoods Township, supervisor's district 8, enumeration district 124, microfilm series T623, film 335, page 227 = 4 B handwritten (Thomas C Thomas)
9 index to compiled service records of volunteer Union soldiers who served in organizations from the state of Pennsylvania (Thomas C Thomas)
10 1910 US census, Illinois, Peoria, ward 2, enumeration district 74, microfilm series M1283, page 69 = 17 B (FamilySearch) (Julia Thomas)
11 'Thomas C Thomas', in Wyles/Kirk family tree, an Ancestry family tree, owner terrilindsay55, accessed 12 July 2015 (Thomas C Thomas)
12 muster-out roll, Pennsylvania Historical and Museum Commission, record group 19, series 19.11, records of the Department of Military and Veterans' Affairs (Thomas C Thomas)
According to the Pennsylvania veterans burial records, the Thomas C Thomas who was assistant surgeon in the 91st died on 15 October 1903, and was buried in Forest Hill Cemetery, Scranton, Lackawanna County, Pennsylvania. I suspect that is wrong.
The Thomas R Thomas buried in Forest Hill Cemetery was born on 11 March 1837 and died on 15 October 1903 and was married to Hannah Richardson Thomas (1842-1906) (see Find a grave, memorial 134266568, created by Ted Myers, 12 August 2014):
However, he served in company B of the 136th Pennsylvania (and not the 126th or 132nd):
line | 12 | 13 | 14 | 15 | 16 |
street name | N Clark | ||||
house number | [210] | ||||
dwelling visit # | [189] | ||||
family visit # | 250 | ||||
name | Thomas Thomas C | - Julia | - Mary S | - John T | - Maggie |
color | W | W | W | W | W |
sex | M | F | F | M | F |
age | 40 | 25 | 17 | 14 | 8 |
month born if born in year | |||||
relationship | Wife | Daughter | Son | Daughter | |
single | 1 | 1 | 1 | ||
married | 1 | 1 | |||
widowed/divorced | |||||
married during year | |||||
occupation | Physician | Keeping House | At School | " " | |
months unemployed | |||||
currently ill? | |||||
blind | |||||
deaf/dumb | |||||
idiotic | |||||
insane | |||||
disabled | |||||
school this year | 1 | 1 | |||
can't read | |||||
can't write | |||||
birthplace | Pena | Illinois | Pena | " | Illinois |
father's birthplace | Pena | Illinois | Pena | " | " |
mother's birthplace | Pena | Illinois | Pena | " | " |
line | 76 | 77 | 78 | 79 |
street | Atlantic Street | |||
house number | ||||
dwelling number | 90 | |||
family number | 91 | |||
name | Thomas, Thomas C. | - Julia S. | - George E | - Margaret |
relationship | head | wife | son | daughter |
color | W | W | W | W |
sex | M | F | M | F |
birth date | Oct 1842 | Oct 1856 | Mar 1883 | Sept 1873 |
age | 57 | 43 | 17 | 26 |
married? | M | M | S | S |
# years married | 20 | 20 | ||
mother of how many children? | 1 | |||
# of children living | 1 | |||
birthplace | Pennsylvania | Illinois | Iowa | Illinois |
father's birthplace | Pennsylvania | North Carolina | Pennsylvania | Pennsylvania |
mother's birthplace | Pennsylvania | France | Illinois | Pennsylvania |
immigration year | ||||
# years in USA | ||||
naturalized citizen? | ||||
occupation | Physician | At school | Saleslady Dry goods | |
# months not employed | 0 | 0 | ||
# months in school | 10 | |||
can read | yes | yes | yes | yes |
can write | yes | yes | yes | yes |
speaks English | yes | yes | yes | yes |
owned/rented | O | |||
free or mortgaged | M | |||
farm/house | H | |||
# of farm schedule |
line | 88 | 89 | 90 |
street | East Republic | ||
house nr | |||
dwelling nr | 412 | ||
family nr | 421 | ||
name | Thomas George E | - Hazel | - Julia |
relationship | Head | Wife | Mother |
sex | M | F | F |
color | W | W | W |
age | 27 | 24 | 54 |
marital status | M1 | M2 | Wd |
#years present marriage | 2 | 2 | |
mother of # children | 1 | 1 | |
mother of # living children | 0 | 1 | |
birthplace | Iowa | Illinois | Not known |
father's birthplace | Not known | United States | Not known |
mother's birthplace | Not known | United States | Not known |
immigrated | |||
naturalized/alien | |||
speaks English | English | English | English |
occupation | Bookkeeper | Fitter | none |
nature of industry etc. | Piano Factory | Ladies Tailor | |
employer etc. | W | W | |
out of work 15 Apr 1910? | No | No | |
# weeks out of work 1909 | 0 | 0 | |
can read | yes | yes | yes |
can write | yes | yes | yes |
school since 1 Sep 09 | |||
owned/rented | R | ||
owned free or mortagaged | |||
farm/house | H | ||
nr on farm schedule | |||
civil war vet | |||
blind | |||
deaf & dumb |
NUMBER OF EACH GRADE. | [check mark] | ||
NAMES. PRESENT AND ABSENT. | Thomas C Thomas | ||
RANK. | Ast Surg | ||
AGE. | [blank] | ||
JOINED FOR SERVICE AND ENROLLED AT GENERAL RENDEZVOUS--COMMENCEMENT OF FIRST PAYMENT BY TIME. | WHEN. | Sept 12 /62 | |
WHERE. | Washington | ||
BY WHOM. | Cap Wood | ||
PERIOD. | 3 yrs | ||
MUSTERED INTO SERVICE. | WHEN. | Sep 12 /62 | |
WHERE. | Washington | ||
BY WHOM. | Cap Wood | ||
LAST PAID. | BY PAYMASTER. | ||
TO WHAT TIME. | |||
TRAVELING. | To place of rendezvous, No. of miles. | ||
From place of discharge home, No. of miles. | |||
Clothing Act | Due U.S | ||
Due Soldier | |||
AMOUNT for clothing in kind, or in money advanced. | |||
VALUE OF equipments, arms &c., received from the United States, to be paid for if lost or destroyed. | |||
Bounty | Paid | ||
Due | |||
REMARKS | |||
Dismissed by Genl Order No 20 March 5 /65 [sic] |