TH
Thomas Harris — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Thomas Harris across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents James & Thomas — first a son (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Harris |
| Given Name | Thomas R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Industry | 0 |
| Highest Grade | Hs 4 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Crafton Borough |
| Est. Birth Year | ~1916 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Jane Harris | Daughter | — | 27 | ~1913 |
| James Harris | Head | — | 63 | ~1877 |
| James Harris | Son | — | 13 | ~1927 |
| Thomas Harris | Son | — | 24 | ~1916 |
| Clara Harris | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 5
Allegheny, Pennsylvania · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Thomas R Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Thomas R |
| 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 24
Allegheny-County, Pennsylvania · implied b. ~1916 — 5 household members
| Surname | Harris |
| Given Name | Thomas R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (County) | Allegheny |
| Industry | 0 |
| Highest Grade | Hs 4 |
| 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 Harris across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Harris (~0.92 confidence) and father Thomas Harris (~0.92 confidence) and mother Clara Harris (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Harris
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Thomas Harris
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Clara Harris
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Harris
Son · 1940 · age 24 · b. ~1916 · Pennsylvania
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Sibling
James Harris
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Harris
Sibling · 1940 · age 27
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-t0627-03401-00317)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | S. Lewis | 4 | Son | — | Pennsylvania |
| 2 | Karl H. Shaw | 48 | Boarder | — | Pennsylvania |
| 3 | Robert J. Thackeray | 45 | Head | 48 | Pennsylvania |
| 4 | Marie R. Thackeray | 45 | Wife | — | Pennsylvania |
| 5 | Robert J. Thackeray | 15 | Son | — | Pennsylvania |
| 6 | William H. Bewley | 51 | Head | Clerk | England |
| 7 | Charlotte Bewley | 42 | Wife | — | Pennsylvania |
| 8 | John S. Bewley | 21 | Son | 42 | Pennsylvania |
| 9 | Richard H. Roberts | 50 | Brother in law | — | Pennsylvania |
| 10 | Thos. F. Hochman | 69 | Head | — | Pennsylvania |
| 11 | Lacy Cox | 23 | Housekeeper | 56 | Pennsylvania |
| 12 | Margaret A. Hochman | 31 | Daughter | 30 | Pennsylvania |
| 13 | Fred W. Vashohl | 34 | Head | 55 | Illinois |
| 14 | Helena A. Vashohl | 33 | Wife | — | Pennsylvania |
| 15 | Fred W. Vashohl | 6 | Son | — | Ohio |
| 16 | Robert Vashohl | 4 | Son | — | Ohio |
| 17 | Sadie O. Baer | 50 | Head | 36 | Pennsylvania |
| 18 | Frank P. Kennedy | 30 | Head | 35 | West Virginia |
| 19 | Jean Kennedy | 25 | Wife | — | Ohio |
| 20 | James R. Harris | 63 | Head | 40 | Pennsylvania |
| 21 | Clara E. Harris | 60 | Wife | — | Pennsylvania |
| 22 | Jane Harris | 27 | Daughter | 15 | Pennsylvania |
| 23 | Thomas R. Harris THIS PERSON | 24 | Son | — | Pennsylvania |
| 24 | James Jr. Harris | 13 | Son | — | Pennsylvania |
| 25 | Howard Lyons | 66 | Head | 40 | Pennsylvania |
| 26 | Nola Lyons | 65 | Wife | — | Pennsylvania |
| 27 | Howard Lyons | 24 | Son | 24 | Pennsylvania |
| 28 | William J. Roberts | 28 | Head | 40 | Pennsylvania |
| 29 | Dorothy Roberts | 27 | Wife | — | Pennsylvania |
| 30 | Fred O. Arnold | 78 | Head | 40 | Pennsylvania |
| 31 | Ida Loughry | 67 | Niece | — | Pennsylvania |
| 32 | Elizabeth Stahl | 60 | Niece | — | Pennsylvania |
| 33 | Harry Myerly | 54 | Head | 35 | Pennsylvania |
| 34 | Sally L. Myerly | 11 | Daughter | — | Pennsylvania |
| 35 | Harry W. Bowman | 37 | Head | 40 | W. Virginia |
| 36 | Marjorie W. Bowman | 35 | Wife | — | Pennsylvania |
| 37 | Beverly Bowman | 11 | Daughter | — | Pennsylvania |
| 38 | April Bowman | 7 | Daughter | — | Pennsylvania |
| 39 | Robert O. Sewell | 60 | Head | 50 | Indiana |
| 40 | Vera Sewell | 38 | Wife | — | Indiana |
Related Census Records
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)