TM
Thomas Mccarthy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Thomas Mccarthy across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Thomas & Thomas — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | McCarthy |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Homestead |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Laborer |
| Industry | steel mill |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Homestead |
| Est. Birth Year | ~1918 |
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 |
|---|---|---|---|---|
| Margaret Mccarthy | Spouse | — | 45 | ~1895 |
| James Mccarthy | Son | — | 14 | ~1926 |
| Audrey Mccarthy | Daughter | — | 11 | ~1929 |
| Thomas Mccarthy | Son | — | 22 | ~1918 |
| Thomas Mccarthy | Head | — | 49 | ~1891 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 2
Allegheny, Pennsylvania · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| 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
Son, age 12
Allegheny, Pennsylvania · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Thomas |
| Relationship to Head | Son |
| 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 22
Allegheny-County, Pennsylvania · implied b. ~1918 — 5 household members
| Surname | McCarthy |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Homestead |
| 1935 Residence (County) | Allegheny |
| Occupation | Laborer |
| Industry | steel mill |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 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 Mccarthy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Mccarthy (~0.92 confidence) and father Thomas Mccarthy (~0.92 confidence) and mother Margaret Mccarthy (~0.92 confidence) and mother Margaret Mccarthy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Mccarthy
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Thomas Mccarthy
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Margaret Mccarthy
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Margaret Mccarthy
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Mccarthy
Son · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
James Mccarthy
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Audrey Mccarthy
Sibling · 1940 · age 11
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-t0627-03406-00037)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Stella Hauryliw | 38 | Lodger | — | Austria |
| 2 | Stephen Babish | 45 | Head | Laborer | Austria |
| 3 | Mary Babish | 36 | Wife | — | Austria |
| 4 | Frank Babish | 19 | Son | Truck Driver | Pennsylvania |
| 5 | Elizabeth Babish | 17 | Daughter | — | Pennsylvania |
| 6 | Margaret Babish | 14 | Daughter | — | Pennsylvania |
| 7 | Paul Babish | 9 | Son | — | Pennsylvania |
| 8 | Helen Babish | 4 | Daughter | — | Pennsylvania |
| 9 | Stephen Babish | 2 | Son | — | Pennsylvania |
| 10 | Bertha Lay | 58 | Head | — | Pennsylvania |
| 11 | Josephine Muggy | 78 | Head | — | Lithuania |
| 12 | Anna Muggy | 43 | Daughter | — | Pennsylvania |
| 13 | Nellie Muggy | 40 | Daughter | Telephonist | Pennsylvania |
| 14 | Mary Muggy | 38 | Daughter | Coil Winder | Pennsylvania |
| 15 | Andrew Bulevich | 60 | Head | — | Lithuania |
| 16 | Anna Bulevich | 60 | Wife | — | Lithuania |
| 17 | Anthony Bulevich | 24 | Son | — | Pennsylvania |
| 18 | Vincent Krawczyk | 40 | Lodger | Clerk | Lithuania |
| 19 | Edward Bulevich | 21 | Son | — | Pennsylvania |
| 20 | Thomas Mccarthy | 49 | Head | Laborer | Pennsylvania |
| 21 | Margaret Mccarthy | 45 | Wife | — | Pennsylvania |
| 22 | Thomas Mccarthy THIS PERSON | 22 | Son | Laborer | Pennsylvania |
| 23 | James Mccarthy | 14 | Son | — | Pennsylvania |
| 24 | Audrey Mccarthy | 11 | Daughter | — | Pennsylvania |
| 25 | Michael Lineback | 69 | Head | — | Austria |
| 26 | Mary Lineback | 65 | Wife | — | Austria |
| 27 | George Hamrock | 25 | Head | Laborer | Pennsylvania |
| 28 | Velma Hamrock | 20 | Wife | Waitress | Pennsylvania |
| 29 | Clarence Hamrock | 18 | Brother | — | Pennsylvania |
| 30 | Ann Allan | 51 | Head | — | Wales |
| 31 | Edward Allan | 14 | Son | — | Pennsylvania |
| 32 | John Allan | 13 | Son | — | Pennsylvania |
| 33 | Mary Allan | 10 | Daughter | — | Pennsylvania |
| 34 | Nancy Allan | 8 | Daughter | — | Pennsylvania |
| 35 | James Allan | 6 | Son | — | Pennsylvania |
| 36 | Arthur Hauser | 40 | Head | Laborer | Pennsylvania |
| 37 | Cecelia Hauser | 38 | Wife | — | Pennsylvania |
| 38 | Lillian Hauser | 13 | Daughter | — | Pennsylvania |
| 39 | Mildred Hauser | 7 | Daughter | — | Pennsylvania |
| 40 | Lewis Karnpashat | 43 | Head | Foreman | Pennsylvania |
Pedigree Summary
Thomas + 2 siblings
Gen 1 · 4 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)