CT
Catherine Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Catherine Thomas across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Patrick & Catherine — first a spouse (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Thomas |
| Given Name | Catherine |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | McKeesport City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | No H4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Mckeesport City |
| Est. Birth Year | ~1914 |
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 Catherine | Age | Birth yr |
|---|---|---|---|---|
| Jack Thomas | Son | — | 5 | ~1935 |
| Emmett Thomas | Head | — | 27 | ~1913 |
| Richard Thomas | Son | — | 6 | ~1934 |
| Catherine Thomas | Spouse | — | 26 | ~1914 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 6
Allegheny, Pennsylvania · implied b. ~1914 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Catherine M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ireland |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 16
Allegheny, Pennsylvania · implied b. ~1914 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Spouse, age 26
Allegheny-County, Pennsylvania · implied b. ~1914 — 4 household members
| Surname | Thomas |
| Given Name | Catherine |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | McKeesport City |
| 1935 Residence (County) | Allegheny |
| Highest Grade | No H4 |
| 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 Catherine Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Thomas (~0.92 confidence) and mother Catherine Thomas (~0.92 confidence) and mother Catherine Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Thomas
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Catherine Thomas
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Catherine Thomas
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Catherine Thomas
Spouse · 1940 · age 26 · b. ~1914 · 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-t0627-03408-00378)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Thomas | 19 | Son | New Worker | Pennsylvania |
| 42 | Clara B. Madden | 57 | Head | — | Pennsylvania |
| 43 | Elmer Madden | 27 | Daughter | — | Pennsylvania |
| 44 | Charles Madden | 23 | Son | Laborer | Pennsylvania |
| 45 | John F. Madden | 30 | Head | Electric Welder | Ohio |
| 46 | Lena Madden | 30 | Wife | Seamstress | Pennsylvania |
| 47 | Luther Brenner | 25 | Head | Chipper | Pennsylvania |
| 48 | Marjorie Brenner | 23 | Wife | — | Pennsylvania |
| 49 | Mary Ford | 62 | Head | — | Ireland |
| 50 | James Ford | 42 | Son | Forman | Pennsylvania |
| 51 | Alice Ford | 44 | Daughter | Clerk | Pennsylvania |
| 52 | Thomas W. Heath | 60 | Head | Electrician | Pennsylvania |
| 53 | Roy Keller | 34 | Head | Clerk | Pennsylvania |
| 54 | Helen Keller | 27 | Wife | — | Maryland |
| 55 | Helen Keller | 11 | Daughter | — | Pennsylvania |
| 56 | Katherine Horetzky | 53 | Mother-in-law | — | Pennsylvania |
| 57 | Extra Line | None | — | — | — |
| 58 | Mary P. Crawford | 67 | Head | — | Pennsylvania |
| 59 | Emmer Crawford | 52 | Wife | — | Pennsylvania |
| 60 | Blanch Crawford | 27 | Daughter | Office Work | Pennsylvania |
| 61 | Harry B. Crawford | 24 | Son | Laborer | Pennsylvania |
| 62 | Thomas Mccarthy | 46 | Head | Laborer | Pennsylvania |
| 63 | Hazel Mccarthy | 37 | Wife | — | Pennsylvania |
| 64 | Mary E. Mccarthy | 18 | Daughter | — | Pennsylvania |
| 65 | Charles Mccarthy | 16 | Son | — | Pennsylvania |
| 66 | Lois Mccarthy | 15 | Daughter | — | Ohio |
| 67 | Thomas J. Mccarthy | 13 | Son | — | Ohio |
| 68 | Edward Mccarthy | 5 | Son | — | Michigan |
| 69 | Emmett Thomas | 27 | Head | Acetylene Burner | Pennsylvania |
| 70 | Catherine Thomas THIS PERSON | 26 | Wife | — | Pennsylvania |
| 71 | Richard Thomas | 6 | Son | — | Pennsylvania |
| 72 | Jack Thomas | 5 | Son | — | Pennsylvania |
| 73 | Vera Thomas | 44 | Head | Seamstress | West Virginia |
| 74 | Mary Laughner | 64 | Daughter | — | Pennsylvania |
| 75 | George Backus | 46 | Head | Merchant | Pennsylvania |
| 76 | Sophie Backus | 36 | Wife | Clerk | Pennsylvania |
| 77 | Peter Backus | 17 | Son | — | Pennsylvania |
| 78 | Edwin Richardson | 43 | Head | Salesman | Pennsylvania |
| 79 | Ethel Richardson | 42 | Wife | — | Pennsylvania |
| 80 | Lois Hendrix | 20 | Daughter | Office Work | Pennsylvania |
Pedigree Summary
Catherine
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)