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Thomas Walker — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Thomas Walker across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Emma & Marie — first a son (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Walker |
| Given Name | Thomas D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Clerk |
| Industry | Dairy |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 520 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Clerk |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1915 |
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 |
|---|---|---|---|---|
| Emma Walker | Head | — | 63 | ~1877 |
| Llewellyn Walker | Son | — | 32 | ~1908 |
| Phillip Walker | Son | — | 28 | ~1912 |
| Thomas Walker | Son | — | 25 | ~1915 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 3
Allegheny, Pennsylvania · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walker |
| Given Name | Thomas J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1916 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walker |
| Given Name | Thomas H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 25
Allegheny-County, Pennsylvania · implied b. ~1915 — 4 household members
| Surname | Walker |
| Given Name | Thomas D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Clerk |
| Industry | Dairy |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 520 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| 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 Thomas Walker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Emma Walker (~0.92 confidence) and mother Marie Walker (~0.92 confidence) and father Alexander Walker (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Emma Walker
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Marie Walker
b. ~1892
Source mother
● Household
· direct · ~0.92
Father
Alexander Walker
b. ~1895
Source father
● Household
· direct · ~0.92
This person
Anchor record
Thomas Walker
Son · 1940 · age 25 · b. ~1915 · Pennsylvania
★ You are viewing this record
Sibling
Llewellyn Walker
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phillip Walker
Sibling · 1940 · age 28
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 — 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-t0627-03661-00469)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Richard Simigliano | 1 | Son | — | Pennsylvania |
| 42 | Phillip Morella | 33 | Head | Clerk | Ohio |
| 43 | Dorothy Morella | 26 | Wife | Housewife | Pennsylvania |
| 44 | Phillip Jr. Morella | 9 | Son | — | Pennsylvania |
| 45 | Angeline Morella | 63 | Head | Housewife | Italy |
| 46 | Jane Vizza | 26 | Daughter | New Worker | Pennsylvania |
| 47 | William Vizza | 24 | Son | Recreation Leader | Pennsylvania |
| 48 | Charles Sylvester | 46 | Head | Instructor | Italy |
| 49 | Bridget Sylvester | 37 | Wife | Housewife | Pennsylvania |
| 50 | Herbert Sylvester | 16 | Son | — | Pennsylvania |
| 51 | Francis Sylvester | 15 | Son | — | Pennsylvania |
| 52 | Charles Sylvester | 13 | Son | — | Pennsylvania |
| 53 | Ralph Sylvester | 11 | Son | — | Pennsylvania |
| 54 | Ernest Sylvester | 5 | Son | — | Pennsylvania |
| 55 | Ralph Rhule | 47 | Head | Assembly Man | Pennsylvania |
| 56 | Ada Rhule | 41 | Wife | Housewife | Pennsylvania |
| 57 | Robert Rhule | 14 | Son | — | Pennsylvania |
| 58 | Ralph Rhule | 8 | Son | — | Pennsylvania |
| 59 | Harry Rhule | 4 | Son | — | Pennsylvania |
| 60 | William Keenan | 25 | Head | Gen Handy Man | Pennsylvania |
| 61 | Mildred Keenan | 23 | Wife | Housewife | Pennsylvania |
| 62 | William Jr. Keenan | 2 | Son | — | Pennsylvania |
| 63 | Annie M. Henderson | 58 | Head | Housewife | Pennsylvania |
| 64 | Wm. James Martin | 41 | Head | Salesman | Pennsylvania |
| 65 | Mabel R. Martin | 37 | Wife | Housewife | Maryland |
| 66 | John J. Byrne | 39 | Head | Checker | Ireland |
| 67 | Hazel Byrne | 32 | Wife | Housewife | Ireland |
| 68 | John L. Byrne | 3 | Son | — | Pennsylvania |
| 69 | Margaret M. Henry | 57 | Head | Housewife | Pennsylvania |
| 70 | June E. Henry | 17 | Daughter | Housewife | Pennsylvania |
| 71 | Rosa Rosing | 69 | Head | Housewife | Switzerland |
| 72 | William Schlender | 34 | Head | Assemblyman | Pennsylvania |
| 73 | Jane Schlender | 33 | Wife | Housewife | Pennsylvania |
| 74 | Elizabeth Jane Schlender | 14 | Daughter | — | Pennsylvania |
| 75 | William Ehrston | 54 | Head | Janitor | England |
| 76 | Elizabeth Ehrston | 54 | Wife | Housewife | Northern Ireland |
| 77 | Emma Walker | 63 | Head | Housewife | Pennsylvania |
| 78 | Llewellyn H. Walker | 32 | Son | Laborer | Pennsylvania |
| 79 | Phillip C. Walker | 28 | Son | Naturalist | Pennsylvania |
| 80 | Thomas D. Walker THIS PERSON | 25 | Son | Clerk | Pennsylvania |
Pedigree Summary
Thomas + 2 siblings
Gen 1 · 3 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)