AT
Ada Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Ada Thomas across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1908), then head of a 5-person household.
Age 32
b. ~1908
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Thomas |
| Given Name | Ada |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mount Wash. |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Swissvale Borough |
| Est. Birth Year | ~1908 |
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 Ada | Age | Birth yr |
|---|---|---|---|---|
| Duwayne Thomas | Son | — | 10 | ~1930 |
| Evan Thomas | Head | — | 34 | ~1906 |
| Ada Thomas | Spouse | — | 32 | ~1908 |
| Gene Thomas | Son | — | 5 | ~1935 |
| Evan Thomas | Son | — | 12 | ~1928 |
Census Appearances
1930
Allegheny, Pennsylvania
Other, age 22
Allegheny, Pennsylvania · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ada |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 19 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Tennessee |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Spouse, age 32
Allegheny-County, Pennsylvania · implied b. ~1908 — 5 household members
| Surname | Thomas |
| Given Name | Ada |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mount Wash. |
| 1935 Residence (County) | Allegheny |
| Highest Grade | Hs 4 |
| 1935 Residence | Pennsylvania |
| 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 Ada Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ada Thomas
Spouse · 1940 · age 32 · b. ~1908 · Pennsylvania
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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-t0627-03418-00679)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jane Wilkinson | 13 | Daughter | — | Pennsylvania |
| 2 | Donald Wilkinson | 9 | Son | — | Pennsylvania |
| 3 | Charles M. Schleyher | 52 | Head | Owner | Pennsylvania |
| 4 | Ethel Schleyher | 52 | Wife | — | Pennsylvania |
| 5 | William Horton | 32 | Nephew | — | Pennsylvania |
| 6 | Jordan Daniels | 34 | Head | Principal | West Virginia |
| 7 | Sarah Daniels | 34 | Wife | — | Pennsylvania |
| 8 | Nancy J. Daniels | 3 | Daughter | — | Pennsylvania |
| 9 | Francis Mcclure | 36 | Head | Agent | Pennsylvania |
| 10 | Rose Mcclure | 34 | Wife | — | Pennsylvania |
| 11 | Francis Mcclure | 16 | Son | — | Pennsylvania |
| 12 | Thomas Mcclure | 14 | Son | — | Pennsylvania |
| 13 | Clifton M. Puckett | 54 | Head | Draftsman | W. Virginia |
| 14 | Minetta G. Puckett | 48 | Wife | — | Missouri |
| 15 | William Hatherick | 31 | Head | Moulder | Pennsylvania |
| 16 | May Hatherick | 27 | Wife | — | Pennsylvania |
| 17 | Mildred Hatherick | 7 | Daughter | — | Pennsylvania |
| 18 | Evan Thomas | 34 | Head | — | Pennsylvania |
| 19 | Ada Thomas THIS PERSON | 32 | Wife | — | Pennsylvania |
| 20 | Evan J. Thomas | 12 | Son | — | Pennsylvania |
| 21 | Duwayne Thomas | 10 | Son | — | Pennsylvania |
| 22 | Gene Thomas | 5 | Son | — | Pennsylvania |
| 23 | William Reed | 52 | Head | Bus Driver | Ohio |
| 24 | Mary Reed | 55 | Wife | — | Pennsylvania |
| 25 | Roseanna Reed | 24 | Daughter | Inst. Assembly | Pennsylvania |
| 26 | Virginia Reed | 21 | Daughter | Office Worker | Pennsylvania |
| 27 | William Reed | 20 | Son | Laborer | Pennsylvania |
| 28 | Leo Reed | 11 | Son | — | Pennsylvania |
| 29 | Ross Mcneil | 24 | Son-in-law | — | Pennsylvania |
| 30 | Elizabeth Kettering | 17 | Niece | — | Pennsylvania |
| 31 | John H. Dumbera | 48 | Head | Pharmacist | Pennsylvania |
| 32 | Margaret Dumbera | 42 | Wife | — | Pennsylvania |
| 33 | William J. Dumbera | 28 | Son | — | Pennsylvania |
| 34 | Barbara A. Dumbera | 2 | Daughter | — | Pennsylvania |
| 35 | Mary H. Dumbera | 50 | Sister | — | Pennsylvania |
| 36 | James E. Steward | 60 | Head | Clerk | Pennsylvania |
| 37 | Rose Steward | 48 | Wife | — | Pennsylvania |
| 38 | Lloyd Steward | 32 | Son | Engineer | Pennsylvania |
| 39 | John P. Agnew | 53 | Head | — | Ireland |
| 40 | Julia A. Agnew | 53 | Wife | — | 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)