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Mary Hartman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Hartman across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1876), then head of a 6-person household.
Age 64
b. ~1876
Female
Spouse
Born: France
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Hartman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | France |
| 1935 Residence (City) | Millvale |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | France |
| Birthplace (normalized) | france |
| Township / Ward | Millvale |
| Est. Birth Year | ~1876 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Dolores Hartman | Daughter | — | 25 | ~1915 |
| Gloria Hartman | Daughter | — | 28 | ~1912 |
| John Hartman | Head | — | 67 | ~1873 |
| Albert Hartman | Son | — | 31 | ~1909 |
| F Hartman | Son | — | 35 | ~1905 |
| Mary Hartman | Spouse | — | 64 | ~1876 |
Census Appearances
1920
Allegheny, Pennsylvania
Spouse, age 44
Allegheny, Pennsylvania · implied b. ~1876 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hartman |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | France |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | France |
| Mother's Birthplace | France |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | French |
| Birth Country | France |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | france |
1930
Allegheny, Pennsylvania
Other, age 54
Allegheny, Pennsylvania · implied b. ~1876 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hartman |
| Given Name | Mary A |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | France |
| Naturalization Status | Naturalized |
| Year of Immigration | 1879 |
| Age at First Marriage | 22 |
| Father's Birthplace | France |
| Mother's Birthplace | France |
| Can Read/Write | Yes |
| Mother Tongue | French |
| Birth Country | France |
| Birthplace (normalized) | france |
1940
Allegheny-County, Pennsylvania
Spouse, age 64
Allegheny-County, Pennsylvania · implied b. ~1876 — 6 household members
| Surname | Hartman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | France |
| 1935 Residence (City) | Millvale |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | France |
| Birthplace (normalized) | france |
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 Mary Hartman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Hartman
Spouse · 1940 · age 64 · b. ~1876 · 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-t0627-03411-00082)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alvina Leas | 26 | Daughter | Cutter | Pennsylvania |
| 42 | Robert Leas | 14 | Son | — | Pennsylvania |
| 43 | Mary Belle Leas | 11 | Daughter | — | Pennsylvania |
| 44 | William Schell | 41 | Head | Truck Driver | Pennsylvania |
| 45 | Margaret Schell | 37 | Wife | — | Pennsylvania |
| 46 | Dolores Schell | 17 | Daughter | New Worker | Pennsylvania |
| 47 | Mercedes Schell | 16 | Daughter | — | Pennsylvania |
| 48 | William P. Bauer | 42 | Head | Painter | Pennsylvania |
| 49 | Colletta Bauer | 42 | Wife | — | Pennsylvania |
| 50 | William F. Bauer | 20 | Son | Truck Driver | Pennsylvania |
| 51 | James Bauer | 18 | Son | New Worker | Pennsylvania |
| 52 | John H. Hartman | 67 | Head | Watchman | Pennsylvania |
| 53 | Mary Hartman THIS PERSON | 64 | Wife | — | France |
| 54 | F. John Hartman | 35 | Son | Shipper | Michigan |
| 55 | Albert H. Hartman | 31 | Son | Upholsterer | Pennsylvania |
| 56 | Gloria A. Hartman | 28 | Daughter | — | Pennsylvania |
| 57 | Dolores Hartman | 25 | Daughter | — | Pennsylvania |
| 58 | James A. Perez | 48 | Head | Mechanic | Florida |
| 59 | Josephine Perez | 37 | Wife | — | Pennsylvania |
| 60 | John Perez | 20 | Son | Printer | Pennsylvania |
| 61 | James Perez | 16 | Son | New Worker | Pennsylvania |
| 62 | Anna Perez | 15 | Daughter | — | Pennsylvania |
| 63 | Joseph Perez | 14 | Son | — | Pennsylvania |
| 64 | Robert Perez | 11 | Son | — | Pennsylvania |
| 65 | Virginia Perez | 7 | Daughter | — | Pennsylvania |
| 66 | Charles Perez | 4 | Son | — | Pennsylvania |
| 67 | Richard Perez | 2 | Son | — | Pennsylvania |
| 68 | Henry A. Happe | 59 | Head | Laborer | Pennsylvania |
| 69 | Elizabeth Happe | 39 | Wife | — | Pennsylvania |
| 70 | Anna Mae Happe | 20 | Daughter | Typist | Pennsylvania |
| 71 | Leo Happe | 17 | Son | Truck Driver | Pennsylvania |
| 72 | Dorothy Happe | 15 | Daughter | — | Pennsylvania |
| 73 | Margaret Happe | 13 | Daughter | — | Pennsylvania |
| 74 | Irene Happe | 9 | Daughter | — | Pennsylvania |
| 75 | Alberta Happe | 4 | Daughter | — | Pennsylvania |
| 76 | Elizabeth Happe | 3 | Daughter | — | Pennsylvania |
| 77 | Charles W. Smith | 54 | Head | Laborer | Pennsylvania |
| 78 | Charles Jr. Smith | 26 | Son | Printer | Pennsylvania |
| 79 | Margaret Smith | 24 | Daughter | — | Pennsylvania |
| 80 | Albert Smith | 56 | Brother | — | 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)