CT
Clarence Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Butler-County, Ohio
Our Model Tree links this Clarence Thomas across the 1920, 1930 and 1940 US Censuses in Butler-County, Ohio (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Butler-County, Ohio |
| Surname | Thomas |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Butler |
| 1935 Residence (County) | Butler |
| Additional Details | |
| Occupation | Proprietor |
| Industry | Filling Station |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Proprietor |
| Township / Ward | Hamilton |
| Est. Birth Year | ~1911 |
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 Clarence | Age | Birth yr |
|---|---|---|---|---|
| Marian Thomas | Spouse | — | 26 | ~1914 |
| Clarence Thomas | Head | — | 29 | ~1911 |
| Richard Thomas | Son | — | 3 | ~1937 |
Census Appearances
1920
Butler, Ohio
Son, age 8
Butler, Ohio · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Clarence W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Butler, Ohio
Son, age 18
Butler, Ohio · implied b. ~1912 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Attendant |
| Industry | Gas Station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Butler-County, Ohio
Head, age 29
Butler-County, Ohio · implied b. ~1911 — 3 household members
| Surname | Thomas |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Butler |
| 1935 Residence (County) | Butler |
| Occupation | Proprietor |
| Industry | Filling Station |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Clarence Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Thomas (~0.92 confidence) and father John Thomas (~0.92 confidence) and mother Lou Thomas (~0.92 confidence) and mother Marie Thomas (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Thomas
b. ~1873
Source father
● Household
· direct · ~0.92
Father
John Thomas
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Lou Thomas
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Marie Thomas
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Thomas
Head · 1940 · age 29 · b. ~1911 · Ohio
★ 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 — Butler-County, Ohio
Open full size
1940 US Federal Census — Butler-County, Ohio
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03032-00156)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edna Morris | 39 | Wife | — | Kentucky |
| 42 | Corliss Morris | 15 | Son | — | Ohio |
| 43 | James W. Turner | 60 | Head | Wheel Painter | Kentucky |
| 44 | Ora E. Turner | 50 | Wife | — | Kentucky |
| 45 | Clarence Thomas THIS PERSON | 29 | Head | Proprietor | Ohio |
| 46 | Marian Thomas | 26 | Wife | — | Ohio |
| 47 | Richard W. Thomas | 3 | Son | — | Ohio |
| 48 | George H. Lowe | 24 | Head | Waiter | Indiana |
| 49 | Helen Lowe | 23 | Wife | Sandwich Maker | Ohio |
| 50 | Clara J. Lowe | 2 | Daughter | — | Ohio |
| 51 | Clara Hastings | 52 | Mother-in-law | Cook | Ohio |
| 52 | Thomas Jr. Bagley | 30 | Head | Mounter | Illinois |
| 53 | Margaret L. Bagley | 25 | Wife | — | Ohio |
| 54 | Thomas Bagley | 7 | Son | — | Ohio |
| 55 | Joyce Bagley | 5 | Daughter | — | Ohio |
| 56 | Ronald Bagley | 2 | Son | — | Ohio |
| 57 | S. D. Thomas | 56 | Father | Linoleum Layer | Illinois |
| 58 | Delbert Sr. Tracy | 51 | Head | Inspector | Ohio |
| 59 | Minnie B. Tracy | 49 | Wife | Labor Lady | Ohio |
| 60 | Robert Jr. Tracy | 21 | Son | — | Ohio |
| 61 | James E. Tracy | 18 | Son | — | Ohio |
| 62 | Frances Everman | 81 | Mother-in-law | — | Germany |
| 63 | Victor J. Goodrich | 31 | Head | Paper Finisher | Kentucky |
| 64 | Ella Goodrich | 30 | Wife | — | Kentucky |
| 65 | Jane Goodrich | 9 | Son | — | Ohio |
| 66 | Jane Ann Goodrich | 7 | Daughter | — | Ohio |
| 68 | Robert H. Cook | 37 | Head | Electrician | Ohio |
| 69 | Margaret E. Cook | 37 | Wife | — | Ohio |
| 70 | Margaret Hicks | 69 | Mother-in-law | — | Ohio |
| 71 | Howard Harrison | 34 | Head | County Agricultural Agt. | Illinois |
| 72 | Anita Harrison | 34 | Wife | — | Illinois |
| 73 | Jane Harrison | 11 | Daughter | — | Illinois |
| 74 | Paul Harrison | 7 | Son | — | Ohio |
| 75 | Raymond L. Baker | 41 | Head | Service Man | Ohio |
| 76 | Alma M. Baker | 35 | Wife | — | Ohio |
| 77 | Carol Baker | 10 | Daughter | — | Ohio |
| 78 | Ruth Baker | 5 | Daughter | — | Ohio |
| 79 | Forest R. Manning | 34 | Head | Paper Finisher | Ohio |
| 80 | Catherine Manning | 31 | Wife | — | Ohio |
Pedigree Summary
Clarence
Gen 1 · 4 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)