RT
Richard Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Richard Thomas across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 6-person household.
Age 65
b. ~1875
Male
Head
Born: Wales
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Thomas |
| Given Name | Richard D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Crafton Borough |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Telegraph Operator |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2424 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
| Occupation | Telegraph Operator |
| Township / Ward | Crafton Borough |
| Est. Birth Year | ~1875 |
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 Richard | Age | Birth yr |
|---|---|---|---|---|
| Jacqueline Trimble | Daughter | — | 3 | ~1937 |
| Mildred Trimble | Daughter | — | 34 | ~1906 |
| Helen Thomas | Daughter | — | 37 | ~1903 |
| Richard Thomas | Head | — | 65 | ~1875 |
| James Trimble | Other | — | 44 | ~1896 |
| Louise Thomas | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Washington, Pennsylvania
Head, age 45
Washington, Pennsylvania · implied b. ~1875 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Richard D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Wales |
| Year of Immigration | 1880 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Operator |
| Industry | Telegraph |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1930
Allegheny, Pennsylvania
Head, age 55
Allegheny, Pennsylvania · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Richard |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Wales |
| Naturalization Status | Naturalized |
| Year of Immigration | 1880 |
| Age at First Marriage | 22 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | telegraph opertr |
| Industry | railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Welsh |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1940
Allegheny-County, Pennsylvania
Head, age 65
Allegheny-County, Pennsylvania · implied b. ~1875 — 6 household members
| Surname | Thomas |
| Given Name | Richard D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Crafton Borough |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Occupation | Telegraph Operator |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2424 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
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 Richard Thomas across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Richard Thomas
Head · 1940 · age 65 · b. ~1875 · Pennsylvania
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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 — Allegheny-County, Pennsylvania
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1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03401-00478)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gertrude Carr | 28 | Daughter | — | Pennsylvania |
| 42 | John Robert Carr | 3 | Son | — | Pennsylvania |
| 43 | Matthew Vea | 41 | Head | Salesman | Wisconsin |
| 44 | Lucille Vea | 39 | Wife | Telephone Operator | Illinois |
| 45 | David Vea | 11 | Son | — | Ohio |
| 46 | Theodore Vea | 9 | Son | — | Ohio |
| 47 | Peter Vea | 2 | Son | — | Pennsylvania |
| 48 | Richard D. Thomas THIS PERSON | 65 | Head | Telegraph Operator | Wales |
| 49 | Louise Thomas | 63 | Wife | — | Pennsylvania |
| 50 | Helen C. Thomas | 37 | Daughter | Teacher | Pennsylvania |
| 51 | James Trimble | 44 | Son-in-law | Cashier | Pennsylvania |
| 52 | Mildred Trimble | 34 | Daughter | — | Pennsylvania |
| 53 | Jacqueline Trimble | 3 | Daughter | — | Pennsylvania |
| 54 | John Sullivan | 48 | Head | Cable Man | Pennsylvania |
| 55 | Sarah Sullivan | 45 | Wife | — | Pennsylvania |
| 56 | Margaret Sullivan | 17 | Daughter | — | Pennsylvania |
| 57 | Florence Sullivan | 16 | Daughter | — | Pennsylvania |
| 58 | Dorothy Sullivan | 13 | Daughter | — | Pennsylvania |
| 59 | Jean Sullivan | 11 | Daughter | — | Pennsylvania |
| 60 | John Sullivan | 8 | Son | — | Pennsylvania |
| 61 | Robert Sullivan | 5 | Son | — | Pennsylvania |
| 62 | Sarah Sullivan | 2 | Daughter | — | Pennsylvania |
| 63 | Wayland Bowser | 46 | Head | Assistant Manager | Pennsylvania |
| 64 | Mary Bowser | 39 | Wife | — | Pennsylvania |
| 65 | Wayland Bowser | 9 | Son | — | Pennsylvania |
| 66 | Laura Davis | 57 | Head | — | Pennsylvania |
| 67 | Catherine Davis | 27 | Daughter | Secretary | Pennsylvania |
| 68 | Robert B. Davis | 26 | Son | Clerk | Pennsylvania |
| 69 | William Leich Davis | 23 | Son | Clerk | Pennsylvania |
| 70 | Betty Jane Davis | 18 | Daughter | New Worker | Pennsylvania |
| 71 | Robert J. Meister | 59 | Head | Salesman | Ohio |
| 72 | Sarah Meister | 59 | Wife | — | Pennsylvania |
| 73 | Maude H. Munnell | 65 | Head | Stenographer | Pennsylvania |
| 74 | Edith Zelda Munnell | 56 | Sister | — | Pennsylvania |
| 75 | Ray Wunderly | 57 | Head | Civil Engineer | Pennsylvania |
| 76 | Cora Wunderly | 57 | Wife | — | Pennsylvania |
| 77 | Simon Rudolph | 47 | Head | Coffee Importer | Pennsylvania |
| 78 | Juliet Rudolph | 46 | Wife | — | Pennsylvania |
| 79 | John Rudolph | 18 | Son | — | Pennsylvania |
| 80 | Miriam Rudolph | 16 | Daughter | — | 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)