TC
Thomas Carroll — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Thomas Carroll across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Mary & Arthur — first a son (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Carroll |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Attendant |
| Industry | Filling Station |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 416 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Attendant |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1912 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Catherine Carroll | Daughter | — | 64 | ~1876 |
| Mary Carroll | Head | — | 65 | ~1875 |
| Thomas Carroll | Son | — | 28 | ~1912 |
Census Appearances
1920
Baltimore, Maryland
Son, age 2
Baltimore, Maryland · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 13
Baltimore, Maryland · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 28
Baltimore-City-County, Maryland · implied b. ~1912 — 3 household members
| Surname | Carroll |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Attendant |
| Industry | Filling Station |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 416 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Thomas Carroll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Carroll (~0.92 confidence) and father Arthur Carroll (~0.92 confidence) and mother Estelle Carroll (~0.92 confidence) and father Frederick Carroll (~0.92 confidence) and mother Sarah Carroll (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Carroll
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
Arthur Carroll
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Estelle Carroll
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
Frederick Carroll
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Sarah Carroll
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Carroll
Son · 1940 · age 28 · b. ~1912 · Maryland
★ You are viewing this record
Sibling
Catherine Carroll
Sibling · 1940 · age 64
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01514-00226)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Julia Jenkins | 49 | Head | — | Maryland |
| 2 | Jeanette Jenkins | 17 | Daughter | — | Maryland |
| 3 | Clenter Jenkins | 14 | Daughter | — | Maryland |
| 4 | Fred Smith | 24 | Head | Liquor Boiler | South Carolina |
| 5 | Clastelle Smith | 26 | Wife | — | South Carolina |
| 6 | Isaac Shannon | 44 | Head | Laundress | Maryland |
| 7 | Lewis Shannon | 23 | Son | — | Maryland |
| 8 | Jasper Jones | 29 | Head | Laborer | Virginia |
| 9 | Mary Jones | 22 | Sister | House Work | Virginia |
| 10 | William Payne | 40 | Head | Laborer | North Carolina |
| 11 | Agnes Payne | 28 | Wife | Domestic | Virginia |
| 12 | William Ruby | 42 | Head | Chauffeur | Maryland |
| 13 | Clara Ruby | 40 | Wife | — | Maryland |
| 14 | Mildred Phillips | 43 | Head | Waitress | Virginia |
| 15 | Edna Phillips | 41 | Daughter | — | Virginia |
| 16 | Clifton Phillips | 21 | Son | Stock Clerk | Virginia |
| 17 | Milton Phillips | 15 | Son | New Hawker | Virginia |
| 18 | Norman Phillips | 14 | Son | — | Maryland |
| 19 | Bernice Phillips | 12 | Daughter | — | Maryland |
| 20 | Audrey Phillips | 9 | Daughter | — | Maryland |
| 21 | Loretta Phillips | 7 | Daughter | — | Maryland |
| 22 | Catherine Phillips | 2 | Daughter | — | Maryland |
| 23 | Hattie Holloway | 65 | Mother-in-law | — | Virginia |
| 24 | Maude Mitchell | 26 | Lodger | Practical Nurse | Virginia |
| 25 | Robert Daughtry | 48 | Head | Machine Helper | North Carolina |
| 26 | Chessie Daughtry | 38 | Wife | — | North Carolina |
| 27 | William Preston | 39 | Lodger | Laborer | Virginia |
| 28 | Hampstead Johnson | 25 | Lodger | Laborer | Virginia |
| 29 | Almetra Johnson | 21 | Lodger | General House Work | Maryland |
| 30 | Alice Lucas | 43 | Head | House Work | Maryland |
| 31 | Edward Maxwell | 40 | Head | Barber | Maryland |
| 32 | Josephine Maxwell | 38 | Wife | School Teacher | Maryland |
| 33 | Emily Brown | 34 | Cousin | — | Maryland |
| 34 | Adolphus Brown | 10 | Cousin | — | Maryland |
| 35 | Josephine Brown | 71 | Aunt | — | Maryland |
| 36 | Mary Carroll | 65 | Head | — | Maryland |
| 37 | Thomas Carroll THIS PERSON | 28 | Son | Attendant | Maryland |
| 38 | Catherine Carroll | 64 | Daughter | — | Maryland |
| 39 | Edna Grooms | 46 | Head | — | Maryland |
| 40 | Gladys Miller | 30 | Daughter | House Work | Maryland |
Pedigree Summary
Thomas + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)