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Marie Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Marie Thomas across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Thomas |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marie | Age | Birth yr |
|---|---|---|---|---|
| Annie Thomas | Spouse | — | 48 | ~1892 |
| Fred Thomas | Son | — | 19 | ~1921 |
| Shirley Thomas | Daughter | — | 5 | ~1935 |
| Beatrice Thomas | Daughter | — | 16 | ~1924 |
| James Thomas | Son | — | 14 | ~1926 |
| Pearl Thomas | Daughter | — | 17 | ~1923 |
| Dorothy Thomas | Daughter | — | 14 | ~1926 |
| Marie Thomas | Daughter | — | 12 | ~1928 |
| Wiley Thomas | Head | — | 59 | ~1881 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 1
Allegheny, Pennsylvania · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 12
Allegheny-County, Pennsylvania · implied b. ~1928 — 9 household members
| Surname | Thomas |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Highest Grade | 7 |
| 1935 Residence | Same house |
| 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 Marie Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marie Thomas
Daughter · 1940 · age 12 · b. ~1928 · Pennsylvania
★ You are viewing this record
Sibling
Shirley Thomas
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pearl Thomas
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Thomas
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Thomas
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beatrice Thomas
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Thomas
Sibling · 1940 · age 14
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-t0627-03654-00184)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Abe Lederman | 21 | Son | — | Pennsylvania |
| 42 | Bessie Lederman | 19 | Daughter | Stenograph | Pennsylvania |
| 43 | Ruben Lederman | 16 | Son | Newsboy | Pennsylvania |
| 44 | Louis Lederman | 11 | Son | — | Pennsylvania |
| 45 | Wiley Thomas | 59 | Head | Labor | New Orleans |
| 46 | Annie Thomas | 48 | Wife | — | Georgia |
| 47 | Fred Thomas | 19 | Son | — | Pennsylvania |
| 48 | Pearl Thomas | 17 | Daughter | — | Pennsylvania |
| 49 | Beatrice Thomas | 16 | Daughter | — | Pennsylvania |
| 50 | James Thomas | 14 | Son | — | Pennsylvania |
| 51 | Dorothy Thomas | 14 | Daughter | — | Pennsylvania |
| 52 | Marie Thomas THIS PERSON | 12 | Daughter | — | Pennsylvania |
| 53 | Shirley Thomas | 5 | Daughter | — | Pennsylvania |
| 54 | Theodore Mesenbaum | 46 | Head | Salesman | Austria |
| 55 | Mary Mesenbaum | 44 | Wife | — | Russia |
| 56 | Ethel Mesenbaum | 21 | Daughter | Salesgirl | Pennsylvania |
| 57 | Beatrice B. Mesenbaum | 19 | Daughter | Stenographer | Pennsylvania |
| 58 | Sylvia Mesenbaum | 14 | Daughter | — | Pennsylvania |
| 59 | Thelma Mesenbaum | 13 | Daughter | — | Pennsylvania |
| 60 | Norman Hoffman | 32 | Lodger | Stenograph | Russia |
| 61 | Thomas O. Clinton | 55 | Head | Ice Man | Tennessee |
| 62 | Mariah Clinton | 44 | Wife | — | Alabama |
| 63 | Moses Clinton | 27 | Son | — | Alabama |
| 64 | Edward Clinton | 24 | Son | Porter | Alabama |
| 65 | Eleanor Edwards | 74 | Mother-law | — | Alabama |
| 66 | Aaron Edwards | 42 | Brother-law | — | Alabama |
| 67 | David Markowitz | 47 | Head | Grocery Store | Hungary |
| 68 | Cecelia Markowitz | 40 | Wife | — | Hungary |
| 69 | Harold Markowitz | 16 | Son | — | Pennsylvania |
| 70 | Ruth Markowitz | 15 | Daughter | — | Pennsylvania |
| 71 | Dorothy Markowitz | 12 | Daughter | — | Pennsylvania |
| 72 | Ethel Markowitz | 2 | Daughter | — | Pennsylvania |
| 73 | Bernard Markowitz | 0 | Son | — | Pittsburgh |
| 74 | Pauline True | 22 | Lodger | Housework | Pennsylvania |
| 75 | William Turner | 38 | Head | — | Pittsburgh |
| 76 | Mary Turner | 37 | Wife | — | Pittsburgh |
| 77 | William Turner | 18 | Son | — | Pittsburgh |
| 78 | Oziellee Turner | 17 | Son | — | Pittsburgh |
| 79 | Jack Turner | 16 | Son | — | Pittsburgh |
| 80 | Frances Hall | 28 | Head | Labor | Georgia |
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)