TB
Thomas Butler — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Clair-County, Illinois
Our Model Tree links this Thomas Butler across the 1920, 1930 and 1940 US Censuses in St.-Clair-County, Illinois (XGBoost, ~Confirmed), with identified parents James & Katherine — first a son (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Illinois |
| Surname | Butler |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | East St. Louis |
| 1935 Residence (County) | St. Clair |
| Additional Details | |
| Occupation | Clerk |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 300 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerk |
| Township / Ward | East St Louis |
| Est. Birth Year | ~1914 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Mary Butler | Daughter | — | 35 | ~1905 |
| Katherine Butler | Head | — | 67 | ~1873 |
| Thomas Butler | Son | — | 26 | ~1914 |
| Emmett Butler | Son | — | 29 | ~1911 |
Census Appearances
1920
St Clair, …
Son, age 6
St Clair, Illinois · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Butler |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
St Clair, …
Son, age 16
St Clair, Illinois · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Butler |
| Given Name | Thomas M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Illinois |
| Occupation | Clerk |
| Industry | Meat Packing Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
St.-Clair-County, Illinois
Son, age 26
St.-Clair-County, Illinois · implied b. ~1914 — 4 household members
| Surname | Butler |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | East St. Louis |
| 1935 Residence (County) | St. Clair |
| Occupation | Clerk |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 300 |
| 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 Thomas Butler across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Butler (~0.92 confidence) and mother Katherine Butler (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Butler
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Katherine Butler
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Butler
Son · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
Mary Butler
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emmett Butler
Sibling · 1940 · age 29
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 — 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-t0627-00881-00078)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Truman Lechner | 24 | Head | Clerk | Illinois |
| 2 | Nellie Lechner | 42 | Wife | — | Illinois |
| 3 | Leo Lechner | 29 | Son | Bartender | Illinois |
| 4 | William Lechner | 24 | Son | Shipping Clerk | Illinois |
| 5 | Wynne Lechner | 17 | Step-son | — | Illinois |
| 6 | Dallas Priddy | 55 | Head | Foreman | Illinois |
| 7 | Mae Priddy | 53 | Wife | — | Illinois |
| 8 | Mary C. Galaxy | 52 | Head | Stenographer | Illinois |
| 9 | Sam Malchabsky | 47 | Head | Shop Keeper | Poland |
| 10 | Katie Malchabsky | 47 | Wife | — | Poland |
| 11 | Fredia Malchabsky | 18 | Daughter | New Worker | Missouri |
| 12 | Bertha Malchabsky | 16 | Daughter | — | Missouri |
| 13 | Harry Marks | 64 | Head | Merchant | Russia |
| 14 | Anna Marks | 51 | Wife | — | Russia |
| 15 | Ruth Marks | 22 | Daughter | Saleslady | Illinois |
| 16 | Katherine Butler | 67 | Head | — | Illinois |
| 17 | Mary Butler | 35 | Daughter | Machine Operator | Missouri |
| 18 | Emmett Butler | 29 | Son | Clerical | Illinois |
| 19 | Thomas Butler THIS PERSON | 26 | Son | Clerk | Illinois |
| 20 | Anne Goldenher | 58 | Head | — | Illinois |
| 21 | Hazel Goldenher | 34 | Daughter | Millinery Designer | Illinois |
| 22 | Lee Luragies | 38 | Lodger | Order Clerk | Illinois |
| 23 | Thomas Keane | 35 | Head | Mechanic | Illinois |
| 24 | Florence Keane | 35 | Wife | — | Illinois |
| 25 | Thomas Jr. Keane | 4 | Son | — | Illinois |
| 26 | Mary Ann Keane | 9 | Daughter | — | Illinois |
| 27 | Donald Keane | 7 | Son | — | Illinois |
| 28 | Michael Keane | 69 | Father | Watchman | Illinois |
| 29 | William Heppel | 28 | Head | Chauffeur | Missouri |
| 30 | Eva Heppel | 27 | Wife | — | Missouri |
| 31 | Clarence Smith | 54 | Head | Barber | Illinois |
| 32 | Doris Smith | 19 | Daughter | — | Missouri |
| 33 | John Gregurich | 22 | Head | Night Cook | Illinois |
| 34 | Maxine Gregurich | 22 | Wife | — | Illinois |
| 35 | Leon Saunders | 42 | Head | Elevator Operator | Missouri |
| 36 | Pearl Saunders | 36 | Wife | — | Mississippi |
| 37 | Betty J. Saunders | 9 | Daughter | — | Illinois |
| 38 | Arthur Saunders | 7 | Son | — | Oklahoma |
| 39 | Janet A. Saunders | 3 | Daughter | — | Illinois |
| 40 | Doris L. Saunders | 0 | Daughter | — | Illinois |
Pedigree Summary
Thomas + 2 siblings
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)