CT
Clarence Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Clarence Thomas across the 1910, 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 6-person household.
Age 51
b. ~1889
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Thomas |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Machinist |
| Industry | Machine shop |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 326 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Machinist |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1889 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Bessie Jones | Daughter | — | 27 | ~1913 |
| James Thomas | Son | — | 10 | ~1930 |
| Dorothy Jones | Other | — | 6 | ~1934 |
| William Guyer | Other | — | 39 | ~1901 |
| Clarence Thomas | Head | — | 51 | ~1889 |
| Emma Thomas | Spouse | — | 49 | ~1891 |
Census Appearances
1910
Allegheny, Pennsylvania
Head, age 23
Allegheny, Pennsylvania · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Years Married | 2 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Plumber |
| Industry | New Work |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Head, age 33
Allegheny, Pennsylvania · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Yard-forman |
| Industry | Motor Fuel Works |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 41
Allegheny, Pennsylvania · implied b. ~1889 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Machine Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Veteran | no |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 51
Allegheny-County, Pennsylvania · implied b. ~1889 — 6 household members
| Surname | Thomas |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Machinist |
| Industry | Machine shop |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 326 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Clarence Thomas
Head · 1940 · age 51 · b. ~1889 · Pennsylvania
★ 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03668-00189)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Hilleen Regina Billen | 30 | Wife | — | Pennsylvania |
| 42 | Lawrence Billen | 5 | Son | — | Pennsylvania |
| 43 | Clarence Thomas THIS PERSON | 51 | Head | Machinist | Pennsylvania |
| 44 | Emma Thomas | 49 | Wife | Machinist Helper | Pennsylvania |
| 45 | James Thomas | 10 | Son | — | Pennsylvania |
| 46 | Bessie Jones | 27 | Daughter | Waitress | Pennsylvania |
| 47 | Dorothy Jones | 6 | Granddaughter | — | Pennsylvania |
| 48 | William Guyer | 39 | Boarder | Printer | Pennsylvania |
| 49 | Thelma Ziegler | 34 | Head | Typist | Pennsylvania |
| 50 | William Hill | 55 | Head | Plasterer | Georgia |
| 51 | Claudia Hill | 50 | Wife | House Cleaner | Georgia |
| 52 | Parthenia Jackson | 42 | Daughter | — | Georgia |
| 53 | William Clyde Jackson | 23 | Grandson | Laborer | Pennsylvania |
| 54 | Elizabeth Rapp | 61 | Head | — | Pennsylvania |
| 55 | Frank M. Miners | 45 | Son-in-law | Inspector | Pennsylvania |
| 56 | Irene Miners | 34 | Daughter | — | Pennsylvania |
| 57 | Clara Herr | 54 | Head | — | Germany |
| 58 | Martha Herr | 30 | Daughter | Stenographer | Pennsylvania |
| 59 | Harry Herr | 14 | Grandson | — | Pennsylvania |
| 60 | Elmer Herr | 25 | Head | Clerk | Pennsylvania |
| 61 | Dorothy Herr | 23 | Wife | Beauty Operator | Pennsylvania |
| 62 | Walter Herr | 41 | Head | Electrician | Pennsylvania |
| 63 | Stella Herr | 30 | Wife | — | Pennsylvania |
| 64 | Walter Jr. Herr | 7 | Son | — | Pennsylvania |
| 65 | Shirley Herr | 5 | Daughter | — | Pennsylvania |
| 66 | Joseph Facey | 37 | Head | Machinist | Pennsylvania |
| 67 | Catherine Facey | 33 | Wife | — | Pennsylvania |
| 68 | Joan Facey | 11 | Daughter | — | Pennsylvania |
| 69 | John Facey | 6 | Son | — | Pennsylvania |
| 70 | William Facey | 3 | Son | — | Pennsylvania |
| 71 | Josephine Eggers | 67 | Mother-in-law | — | Pennsylvania |
| 72 | Elizabeth Shunk | 63 | Head | Nurse | Pennsylvania |
| 73 | Frank Jr. Coghill | 37 | Son-in-law | Selector | Pennsylvania |
| 74 | Vivian Coghill | 37 | Daughter | — | Pennsylvania |
| 75 | Frank Coghill | 61 | Lodger | Bartender | Pennsylvania |
| 76 | Harvey Brown | 35 | Son | Bar Tender | Pennsylvania |
| 77 | John Beller | 47 | Head | — | Pennsylvania |
| 78 | Robert Beller | 21 | Son | Laborer | Pennsylvania |
| 79 | Paul Beller | 13 | Son | — | Pennsylvania |
| 80 | John R. Lowe | 47 | Head | Waiter | Pennsylvania |
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)