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Louis Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Oakland-County, Michigan
Our Model Tree links this Louis Thomas across the 1930 and 1940 US Censuses in Oakland-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 7-person household.
Age 46
b. ~1894
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Oakland-County, Michigan |
| Surname | Thomas |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Birmingham City |
| 1935 Residence (County) | Oakland |
| Additional Details | |
| Occupation | Proprietor |
| Industry | Gas Station |
| Class of Worker | E |
| Hours Worked | 60 |
| Income (1939) | 703 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Proprietor |
| Township / Ward | Birmingham City |
| Est. Birth Year | ~1894 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louis | Age | Birth yr |
|---|---|---|---|---|
| Bill Thomas | Son | — | 13 | ~1927 |
| Benjamin Thomas | Son | — | 9 | ~1931 |
| John Thomas | Son | — | 18 | ~1922 |
| Simpson Thomas | Son | — | 6 | ~1934 |
| Mary Lehan | Other | — | 22 | ~1918 |
| Carolyn Thomas | Spouse | — | 39 | ~1901 |
| Louis Thomas | Head | — | 46 | ~1894 |
Census Appearances
1930
Oakland, Michigan
Head, age 36
Oakland, Michigan · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 27 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Connecticut |
| Occupation | Engineer |
| Industry | Automobile |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 29,000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Oakland-County, Michigan
Head, age 46
Oakland-County, Michigan · implied b. ~1894 — 7 household members
| Surname | Thomas |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Birmingham City |
| 1935 Residence (County) | Oakland |
| Occupation | Proprietor |
| Industry | Gas Station |
| Class of Worker | E |
| Hours Worked | 60 |
| Income (1939) | 703 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| 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 Louis Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Thomas
Head · 1940 · age 46 · b. ~1894 · Michigan
★ 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 — Oakland-County, Michigan
Open full size
1940 US Federal Census — Oakland-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01798-00643)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Walter J Hans | 15 | Son | — | New York |
| 42 | Viola Emmel | 27 | Maid | Housekeeper | Michigan |
| 43 | Louis Thomas THIS PERSON | 46 | Head | Proprietor | Illinois |
| 44 | Carolyn Thomas | 39 | Wife | — | Michigan |
| 45 | John Thomas | 18 | Son | — | Michigan |
| 46 | Bill Thomas | 13 | Son | — | Michigan |
| 47 | Benjamin Thomas | 9 | Son | — | Michigan |
| 48 | Simpson Thomas | 6 | Son | — | Michigan |
| 49 | Mary Lehan | 22 | Maid | Housekeeper | N. Dakota |
| 50 | William A Lisney | 40 | Head | Sales Engineer | Pennsylvania |
| 51 | Mildred Lisney | 37 | Wife | — | California |
| 52 | Jane Lisney | 13 | Daughter | — | Michigan |
| 53 | Marguerite Baker | 22 | Maid | Housekeeper | Missouri |
| 54 | John R Ackerman | 48 | Head | Advertising | New Jersey |
| 55 | Winifred Ackerman | 44 | Wife | — | New Jersey |
| 56 | Hold Ackerman | 15 | Son | — | New Jersey |
| 57 | Craig Ackerman | 7 | Son | — | Penn |
| 58 | Atwood Oatman | 45 | Head | Sales Manager | New York |
| 59 | Maria O Oatman | 43 | Wife | — | New York |
| 60 | Mary B Oatman | 15 | Daughter | — | New York |
| 61 | Grace Blakeley | 31 | Maid | Housekeeper | Michigan |
| 62 | John W Jr Knecht | 45 | Head | Salesman | Penn |
| 63 | Elizabeth Knecht | 36 | Wife | — | Virginia |
| 64 | Nancy Knecht | 5 | Daughter | — | Michigan |
| 65 | Marly Knecht | 3 | Daughter | — | Michigan |
| 66 | Ethel Turner | 30 | Maid | Housekeeper | Georgia |
| 67 | Clarence W Wacker | 52 | Head | Salesman | Ohio |
| 68 | Mae W Wacker | 51 | Wife | — | Ohio |
| 69 | Watts Wacker | 13 | Son | — | Ohio |
| 70 | Minnie Lacey | 54 | Maid | Housekeeper | N. Carolina |
| 71 | William Amon | 50 | Head | Salesman | New York |
| 72 | Pauline A Amon | 49 | Wife | — | Michigan |
| 73 | Mildred A Amon | 20 | Daughter | — | Canada E |
| 74 | Nancy P Amon | 16 | Daughter | — | Canada E |
| 75 | Janice L Amon | 14 | Daughter | — | Canada E |
| 76 | Pauline W Miller | 76 | Mother-in-law | — | Germany |
| 77 | Charles A Thomas | 42 | Head | Salesman | Ohio |
| 78 | Hillar V Thomas | 43 | Wife | — | Ohio |
| 79 | Jane E Ab Thomas | 18 | Daughter | — | Ohio |
| 80 | David Thomas | 17 | Son | — | Ohio |
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)