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Thomas Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Thomas Anderson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Harry & Katherine — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Anderson |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh (City) |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Timekeeper |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 100 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Timekeeper |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Alice Anderson | Daughter | — | 20 | ~1920 |
| Harry Anderson | Head | — | 50 | ~1890 |
| Thomas Anderson | Son | — | 23 | ~1917 |
| Katherine Anderson | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 2
Allegheny, Pennsylvania · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Thomas J |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Chain Works |
| Class of Worker | W |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Other, age 12
Allegheny, Pennsylvania · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Thomas |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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 23
Allegheny-County, Pennsylvania · implied b. ~1917 — 4 household members
| Surname | Anderson |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh (City) |
| 1935 Residence (County) | Allegheny |
| Occupation | Timekeeper |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 100 |
| Highest Grade | C 1 |
| 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 Thomas Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Anderson (~0.92 confidence) and mother Katherine Anderson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Anderson
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Katherine Anderson
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Anderson
Son · 1940 · age 23 · b. ~1917 · Pennsylvania
★ You are viewing this record
Sibling
Alice Anderson
Sibling · 1940 · age 20
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-t0627-03675-00432)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Guy Cooper | 65 | Head | — | Pennsylvania |
| 2 | Audrey A. Cooper | 15 | Daughter | — | Pennsylvania |
| 3 | Daniel G. Mcconnell | 26 | Head | Crane Operator | Pennsylvania |
| 4 | Elizabeth Mcconnell | 27 | Wife | Manicurist | Pennsylvania |
| 5 | Henry Keir | 54 | Head | Laborer | Pennsylvania |
| 6 | Emily Keir | 46 | Wife | — | Pennsylvania |
| 7 | Clare Ruth Keir | 18 | Daughter | — | Pennsylvania |
| 8 | Anna Lou Keir | 14 | Daughter | — | Pennsylvania |
| 9 | John F. Wagner | 54 | Head | Butcher | Pennsylvania |
| 10 | Caroline Wagner | 49 | Wife | — | Pennsylvania |
| 11 | Arnold Kederer | 45 | Head | Tester | Florida |
| 12 | Otilda Kederer | 42 | Wife | — | Pennsylvania |
| 13 | Edith Kederer | 18 | Daughter | — | Pennsylvania |
| 14 | Edith Kederer | 14 | Daughter | — | Pennsylvania |
| 15 | Eugene Kederer | 7 | Son | — | Pennsylvania |
| 16 | Eugene Thomas | 35 | Head | Freight Brakeman | Washington |
| 17 | Mildred Thomas | 23 | Wife | — | Pennsylvania |
| 18 | Eugene Thomas | 3 | Son | — | Pennsylvania |
| 19 | Edward Mahoney | 27 | Head | Salesman | Canada |
| 20 | Dorothy Mahoney | 21 | Wife | — | Pennsylvania |
| 21 | Ada Cadugan | 55 | Head | Stenographer | Pennsylvania |
| 22 | Edythe Wagner | 54 | Sister | — | Pennsylvania |
| 23 | Sam Wagner | 33 | Nephew | Stenographer | Pennsylvania |
| 24 | Margaret B. Cadugan | 26 | Niece | Bell Operator | Pennsylvania |
| 25 | Richard Currie | 44 | Head | Patrolman | Syria |
| 26 | Helen Currie | 39 | Wife | — | Pennsylvania |
| 27 | Loretta Currie | 20 | Daughter | Receptionist | Pennsylvania |
| 28 | Anna Umbley | 32 | Lodger | Elevator Operator | Pennsylvania |
| 29 | Michael Mazur | 51 | Head | Executive | Italy |
| 30 | Mary Mazur | 35 | Wife | — | Ohio |
| 31 | Samuel M. Mazur | 3 | Son | — | Pennsylvania |
| 32 | Michael S. Mazur | 1 | Son | — | Pennsylvania |
| 33 | Anna Lirkovich | 65 | Head | — | Yugoslavia |
| 34 | Anthony Gregory | 45 | Son-in-law | Shop Keeper | Yugoslavia |
| 35 | Katherine Gregory | 34 | Daughter | Beauty Operator | Pennsylvania |
| 36 | Harry H. Anderson | 50 | Head | Steward | Pennsylvania |
| 37 | Katherine Anderson | 50 | Wife | — | Pennsylvania |
| 38 | Thomas Anderson THIS PERSON | 23 | Son | Timekeeper | Pennsylvania |
| 39 | Alice Anderson | 20 | Daughter | Credit Clerk | Pennsylvania |
| 40 | Clyde C. Chriswell | 54 | Head | Printer | Pennsylvania |
Pedigree Summary
Thomas + 1 sibling
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)