CT
Clara Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monroe-County, Illinois
Our Model Tree links this Clara Thomas across the 1930 and 1940 US Censuses in Monroe-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 7-person household.
Age 47
b. ~1893
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Illinois |
| Surname | Thomas |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Columbia Precinct |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Columbia Precinct |
| Est. Birth Year | ~1893 |
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 Clara | Age | Birth yr |
|---|---|---|---|---|
| Sophie Thomas | Daughter | — | 23 | ~1917 |
| Pauline Thomas | Daughter | — | 21 | ~1919 |
| Frank Thomas | Head | — | 51 | ~1889 |
| Lorenz Thomas | Son | — | 16 | ~1924 |
| Frank Thomas | Son | — | 18 | ~1922 |
| Leo Thomas | Son | — | 9 | ~1931 |
| Clara Thomas | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Monroe, Illinois
Other, age 37
Monroe, Illinois · implied b. ~1893 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thoma |
| Given Name | Clara A |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Monroe-County, Illinois
Spouse, age 47
Monroe-County, Illinois · implied b. ~1893 — 7 household members
| Surname | Thomas |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Columbia Precinct |
| 1935 Residence (County) | Monroe |
| Highest Grade | 5 |
| 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 Clara Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Clara Thomas
Spouse · 1940 · age 47 · b. ~1893 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Monroe-County, Illinois
Open full size
1940 US Federal Census — Monroe-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00859-00072)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis G Stumpf | 42 | Head | Farmer | Illinois |
| 2 | Laura Stumpf | 42 | Wife | — | Illinois |
| 3 | Lucille Stumpf | 13 | Daughter | — | Illinois |
| 4 | Laverne Stumpf | 10 | Daughter | — | Illinois |
| 5 | Raymond E Wood | 23 | Nephew | Farm Hand | Missouri |
| 6 | Henry E Mueller | 61 | Head | Farmer | Illinois |
| 7 | Emma S Mueller | 56 | Wife | — | Illinois |
| 8 | Louis Stephan | 45 | Head | Farmer | Illinois |
| 9 | Sophie Stephan | 43 | Wife | — | Illinois |
| 10 | George Mueller | 57 | Head | Farmer | Illinois |
| 11 | Catherine Mueller | 83 | Mother | — | Illinois |
| 12 | Louis F Mueller | 51 | Head | Farmer | Illinois |
| 13 | Margaret Mueller | 53 | Wife | — | Illinois |
| 14 | Herbert Mueller | 28 | Son | Helper | Illinois |
| 15 | Walter Mueller | 21 | Son | Helper | Illinois |
| 16 | Edward Ahrens | 53 | Head | Farmer | Illinois |
| 17 | May L Ahrens | 47 | Wife | — | Kentucky |
| 18 | Frank Thomas | 51 | Head | Farmer | Illinois |
| 19 | Clara Thomas THIS PERSON | 47 | Wife | — | Illinois |
| 20 | Sophie Thomas | 23 | Daughter | — | Illinois |
| 21 | Pauline Thomas | 21 | Daughter | — | Illinois |
| 22 | Frank Thomas | 18 | Son | — | Illinois |
| 23 | Lorenz Thomas | 16 | Son | — | Illinois |
| 24 | Leo Thomas | 9 | Son | — | Illinois |
| 25 | Henry Dotzauer | 39 | Head | Farmer | Illinois |
| 26 | Clara Dotzauer | 33 | Wife | — | Illinois |
| 27 | Marian Dotzauer | 7 | Daughter | — | Illinois |
| 28 | Dorothy Dotzauer | 3 | Daughter | — | Illinois |
| 29 | Richard Dotzauer | 80 | Father | — | Illinois |
| 30 | Margaret Dotzauer | 73 | Mother | — | Illinois |
| 31 | George F Taut | 46 | Head | Farmer | Missouri |
| 32 | Sophie M Taut | 47 | Wife | — | Illinois |
| 33 | Herman Taut | 18 | Son | Farm Helper | Illinois |
| 34 | Hilda Taut | 16 | Daughter | Farm Helper | Illinois |
| 35 | Walter Taut | 13 | Son | — | Illinois |
| 36 | Edwin Taut | 11 | Son | — | Illinois |
| 37 | Raymond Taut | 10 | Son | — | Illinois |
| 38 | John Schorb | 69 | Head | General Farming | Illinois |
| 39 | Oliver Schorb | 23 | Son | General Farming | Illinois |
| 40 | John H Prellinger | 77 | Head | — | Illinois |
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)