TH
Thomas Hart — 1940 US Census Record
Model Tree available1940 United States Federal Census · Vermilion-County, Illinois
Our Model Tree links this Thomas Hart across the 1910, 1920, 1930 and 1940 US Censuses in Vermilion-County, Illinois (XGBoost, ~Confirmed), with identified parents James & Margaret — first a head (b.~1891), then head of a 5-person household.
Age 49
b. ~1891
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Vermilion-County, Illinois |
| Surname | Hart |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Danville (Outside) |
| 1935 Residence (County) | Vermilion |
| Additional Details | |
| Occupation | Stationary Engineer |
| Industry | Illinois Power & Light Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1980 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stationary Engineer |
| Township / Ward | Danville Outside |
| Est. Birth Year | ~1891 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| David Hart | Son | — | 15 | ~1925 |
| Donald Hart | Son | — | 17 | ~1923 |
| Lillian Hart | Spouse | — | 47 | ~1893 |
| Thomas Hart | Head | — | 49 | ~1891 |
| Dorothy Hart | Daughter | — | 14 | ~1926 |
Census Appearances
1910
Vermilion, Illinois
Son, age 19
Vermilion, Illinois · implied b. ~1891 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Electric Plant |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Vermilion, Illinois
Head, age 28
Vermilion, Illinois · implied b. ~1892 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Illinois |
| Year of Immigration | 1911 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | United States |
| Occupation | Engineer Stationary |
| Industry | Light Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Year of Naturalization | 1918 |
| Birthplace (normalized) | illinois |
1930
Vermilion, Illinois
Head, age 38
Vermilion, Illinois · implied b. ~1892 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Canada-English |
| Occupation | Stationary Engineer |
| Industry | Power & Light Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 0 |
| Home Value / Rent | R |
| Veteran | O |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Vermilion-County, Illinois
Head, age 49
Vermilion-County, Illinois · implied b. ~1891 — 5 household members
| Surname | Hart |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Danville (Outside) |
| 1935 Residence (County) | Vermilion |
| Occupation | Stationary Engineer |
| Industry | Illinois Power & Light Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1980 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Hart across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Hart (~0.92 confidence) and mother Margaret Hart (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Hart
b. ~1856
Source father
● Household
· direct · ~0.92
Mother
Margaret Hart
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Hart
Head · 1940 · age 49 · b. ~1891 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Vermilion-County, Illinois
Open full size
1940 US Federal Census — Vermilion-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00898-00657)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herbert Payton | 16 | Son | — | Indiana |
| 2 | Fred Payton | 12 | Son | — | Indiana |
| 3 | William M Lape | 52 | Head | Attendant | Illinois |
| 4 | Clara E Lape | 49 | Wife | House Work | Illinois |
| 5 | Neal Lape | 21 | Son | Helper | Illinois |
| 6 | Margaret Lape | 19 | Daughter in law | Dietician Asst | Illinois |
| 7 | Augusta Montgomery | 58 | Head | Miner | Illinois |
| 8 | Minnie Mae Montgomery | 52 | Wife | Laundry Worker | Illinois |
| 9 | Hortense Montgomery | 32 | Daughter | Book Binder | Illinois |
| 10 | Howard Montgomery | 29 | Son | Miner | Illinois |
| 11 | Delee Montgomery | 20 | Son | Washer | Illinois |
| 12 | Gilbert Montgomery | 18 | Son | Miner | Illinois |
| 13 | Dorothy Montgomery | 14 | Daughter | — | Illinois |
| 14 | Harry Brinton | 75 | Head | Groceryman | Illinois |
| 15 | Mary A Brinton | 61 | Wife | Clerk | Missouri |
| 16 | Jack Briggs | 29 | Head | Salesman | Illinois |
| 17 | Irene Briggs | 29 | Wife | — | Illinois |
| 18 | Otis Reyes | 70 | Head | — | Illinois |
| 19 | Matthias B Swindall | 50 | Head | Attendant | Illinois |
| 20 | Blanche Swindall | 35 | Wife | — | Illinois |
| 21 | Barton Lee Swindall | 14 | Son | — | Illinois |
| 22 | William T Fleming | 58 | Head | Adv. Distributor | Illinois |
| 23 | Clara Fleming | 55 | Wife | — | Illinois |
| 24 | Juanita Fleming | 19 | Daughter | — | Illinois |
| 25 | Geneva Fleming | 18 | Daughter | — | Illinois |
| 26 | Thomas Hart THIS PERSON | 49 | Head | Stationary Engineer | Illinois |
| 27 | Lillian Hart | 47 | Wife | — | Indiana |
| 28 | Donald Hart | 17 | Son | — | Illinois |
| 29 | David Hart | 15 | Son | — | Illinois |
| 30 | Dorothy Hart | 14 | Daughter | — | Illinois |
| 31 | Arch Landon | 48 | Head | Brakeman | Indiana |
| 32 | Myrtle D Landon | 44 | Wife | — | Indiana |
| 33 | Lewis Landon | 10 | Son | — | Illinois |
| 34 | Irene Eller | 26 | Daughter | Waitress | Illinois |
| 35 | Jack Eller | 9 | Son | — | Illinois |
| 36 | Anna Wilhoit | 53 | Head | — | Belgium |
| 37 | Elliot Wilhoit | 28 | Son | Meat Cutter | Illinois |
| 38 | Jeanette Wilhoit | 26 | Daughter in law | — | Illinois |
| 39 | Maxine Wilhoit | 1 | Granddaughter | — | Illinois |
| 40 | Richard V Davis | 30 | Head | Carpenter | Illinois |
Related Census Records
Pedigree Summary
Thomas
Gen 1 · 2 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)