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Thomas Graham — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Thomas Graham across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1902), then head of a 5-person household.
Age 38
b. ~1902
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Graham |
| Given Name | Thomas C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Blawnox Boro. |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Plumber |
| Industry | Plumbing Contractor |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 348 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Plumber |
| Township / Ward | Blawnox Boro |
| Est. Birth Year | ~1902 |
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 |
|---|---|---|---|---|
| Thomas Graham | Head | — | 38 | ~1902 |
| John Graham | Son | — | 13 | ~1927 |
| Robert Graham | Son | — | 10 | ~1930 |
| David Graham | Son | — | 4 | ~1936 |
| Clara Graham | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 18
Allegheny, Pennsylvania · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Thomas |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 28
Allegheny, Pennsylvania · implied b. ~1902 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New York |
| Occupation | Plumber |
| Industry | Plumbing Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Radio Set | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 38
Allegheny-County, Pennsylvania · implied b. ~1902 — 5 household members
| Surname | Graham |
| Given Name | Thomas C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Blawnox Boro. |
| 1935 Residence (County) | Allegheny |
| Occupation | Plumber |
| Industry | Plumbing Contractor |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 348 |
| Highest Grade | No 8 |
| 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 Graham across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Graham
Head · 1940 · age 38 · b. ~1902 · 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-t0627-03397-00750)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harold C. Mckinney | 42 | Head | Minister | Africa |
| 2 | Beulah D. Mckinney | 42 | Wife | — | New York |
| 3 | Harold C. Mckinney | 17 | Son | — | New York |
| 4 | Grace Johanna Mckinney | 7 | Daughter | — | Ohio |
| 5 | Judith Rachel Mckinney | 4 | Daughter | — | Ohio |
| 6 | Herman Seemiller | 70 | Lodger | — | Germany |
| 7 | George A. Shubert | 46 | Head | Draftsman | Ohio |
| 8 | E. Pearl Shubert | 46 | Wife | — | Pennsylvania |
| 9 | Michael Casey | 30 | Brother-in-law | Machine Hand | Pennsylvania |
| 10 | Margaret Casey | 28 | Daughter | Teacher | Pennsylvania |
| 11 | John Peters | 47 | Head | Letter Carrier | Pennsylvania |
| 12 | Virginia R. Peters | 47 | Wife | — | Pennsylvania |
| 13 | John Jr. Peters | 26 | Son | Truck Driver | Pennsylvania |
| 14 | James Peters | 21 | Son | Salesman | Pennsylvania |
| 15 | Bernard Peters | 20 | Son | Checker | Pennsylvania |
| 16 | Tom Peters | 13 | Son | — | Pennsylvania |
| 17 | Charles Peters | 11 | Son | — | Pennsylvania |
| 18 | William Peters | 9 | Son | — | Pennsylvania |
| 19 | William S. Griffith | 51 | Head | Office Manager | Pennsylvania |
| 20 | Anna L. Griffith | 49 | Wife | — | Pennsylvania |
| 21 | Catherine Griffith | 20 | Daughter | Bookkeeper | Pennsylvania |
| 22 | John L. Griffith | 18 | Son | File Clerk | Pennsylvania |
| 23 | William Jr. Griffith | 15 | Son | — | Pennsylvania |
| 24 | Thomas Ed. Griffith | 8 | Son | — | Pennsylvania |
| 25 | Henry Maeder | 64 | Head | Plasterer | Pennsylvania |
| 26 | Margaret A. Maeder | 55 | Wife | — | Pennsylvania |
| 27 | Fred Sauer | 36 | Brother-in-law | Machine Hand | Hungary |
| 28 | Mildred Sauer | 34 | Daughter | — | Pennsylvania |
| 29 | Robert Sauer | 11 | Grandson | — | Pennsylvania |
| 30 | Kenneth Sauer | 1 | Grandson | — | Pennsylvania |
| 31 | Donald H. Mcduffin | 52 | Head | Clerk | Pennsylvania |
| 32 | Margaret E. Mcduffin | 50 | Wife | — | Pennsylvania |
| 33 | Thomas C. Graham THIS PERSON | 38 | Head | Plumber | Pennsylvania |
| 34 | Clara E. Graham | 40 | Wife | — | Pennsylvania |
| 35 | John Graham | 13 | Son | — | Pennsylvania |
| 36 | Robert Graham | 10 | Son | — | Pennsylvania |
| 37 | David Graham | 4 | Son | — | Pennsylvania |
| 38 | Andrew Graham | 43 | Head | Truck Driver | Pennsylvania |
| 39 | Anna X. Graham | 34 | Wife | — | Pennsylvania |
| 40 | Wallace Graham | 9 | Son | — | 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)