WT
Walter Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Clair-County, Illinois
Our Model Tree links this Walter Thomas across the 1920, 1930 and 1940 US Censuses in St.-Clair-County, Illinois (XGBoost, ~Confirmed), with identified parents Herman & Kate — first a head (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Illinois |
| Surname | Thomas |
| Given Name | Walter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Caseyville |
| 1935 Residence (County) | St. Clair |
| Additional Details | |
| Occupation | Laborer |
| Industry | Packing House |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1008 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Caseyville |
| Est. Birth Year | ~1913 |
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 Walter | Age | Birth yr |
|---|---|---|---|---|
| Walter Thomas | Head | — | 27 | ~1913 |
| Donald Thomas | Son | — | 2 | ~1938 |
| Mildred Thomas | Spouse | — | 28 | ~1912 |
Census Appearances
1920
St Clair, …
Son, age 6
St Clair, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Walter |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
St Clair, …
Son, age 16
St Clair, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Meter Man |
| Industry | Light Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
St.-Clair-County, Illinois
Head, age 27
St.-Clair-County, Illinois · implied b. ~1913 — 3 household members
| Surname | Thomas |
| Given Name | Walter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Caseyville |
| 1935 Residence (County) | St. Clair |
| Occupation | Laborer |
| Industry | Packing House |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1008 |
| Highest Grade | H-4 |
| 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 Walter Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Herman Thomas (~0.92 confidence) and mother Kate Thomas (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Herman Thomas
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Kate Thomas
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Walter Thomas
Head · 1940 · age 27 · b. ~1913 · 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 — St.-Clair-County, Illinois
Open full size
1940 US Federal Census — St.-Clair-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00879-00262)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Darrell Kohlmiller | 2 | son | — | Illinois |
| 2 | Walter Thomas THIS PERSON | 27 | Head | Laborer | Illinois |
| 3 | Mildred Thomas | 28 | wife | House Wife | Illinois |
| 4 | Donald Thomas | 2 | son | — | Illinois |
| 5 | Edgar Woodcock | 41 | Head | Solicitor | Illinois |
| 6 | Josephine Woodcock | 33 | wife | House Wife | Illinois |
| 7 | James Woodcock | 8 | son | — | Illinois |
| 8 | Frank Woodcock | 4 | son | — | Illinois |
| 9 | Gideon Matter | 39 | Head | Driver | Illinois |
| 10 | Leona Matter | 31 | wife | House Wife | Kansas |
| 11 | Sallie Matter | 5 | daughter | — | Illinois |
| 12 | Margie Matter | 16 | daughter | — | Illinois |
| 13 | Florence Fortune | 29 | Head | Laborer | Illinois |
| 14 | Mabel Fortune | 29 | wife | House Wife | Illinois |
| 15 | Janet Marie Fortune | 5 | daughter | — | Illinois |
| 16 | Frank Kidd | 59 | Head | Laborer | Illinois |
| 17 | Minnie Kidd | 57 | wife | House Wife | Illinois |
| 18 | Hugh Toussaint | 53 | Head | Office Work | Illinois |
| 19 | Ethel Toussaint | 48 | wife | House Wife | Illinois |
| 20 | Olive Jennett Toussaint | 21 | daughter | Stenographer | Illinois |
| 21 | Cordula Farrel | 27 | daughter | Unemployed | Illinois |
| 22 | Peggie Lee Farrel | 3 | Grand daughter | — | Illinois |
| 23 | George Higgins | 86 | Boarder | Unable To Work | Alabama |
| 24 | William Bivoler | 59 | Head | Farming | Illinois |
| 25 | Lee Bivoler | 52 | wife | House Wife | Illinois |
| 26 | William P. Bivoler | 24 | son | Laborer | Illinois |
| 27 | Millard Z. Bivoler | 23 | son | Laborer | Illinois |
| 28 | Helen Elizabeth Bivoler | 21 | daughter | Seamstress | Illinois |
| 29 | Bernhart Habechmidt | 30 | Head | Trackman | Illinois |
| 30 | Verna Habechmidt | 28 | wife | House Wife | Illinois |
| 31 | James W. Schmidt | 85 | Head | Unable To Work | Missouri |
| 32 | James W. Jr. Schmidt | 38 | son | Fireman | Illinois |
| 33 | John Miller | 57 | Head | Laborer | Illinois |
| 34 | Elizabeth Miller | 52 | wife | House Wife | Illinois |
| 35 | Florence Miller | 27 | daughter | Laborer | Illinois |
| 36 | Betty Miller | 21 | daughter | House Wife | Illinois |
| 37 | Earle Jean Miller | 3 | Grand daughter | — | Illinois |
| 38 | Carl Meger | 31 | Head | Baker | Illinois |
| 39 | Pearl Meger | 31 | wife | Candy Packer | Illinois |
| 40 | Everett Tennant | 52 | Head | Miner | Kentucky |
Pedigree Summary
Walter
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)