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Mary Allison — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Allison across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 3-person household.
Age 48
b. ~1892
Female
Head
Born: Pennsylvania
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Allison |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Tarentum Borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Tarentum Borough |
| Est. Birth Year | ~1892 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Peter Lovasik | Other | — | 25 | ~1915 |
| Mary Allison | Head | — | 48 | ~1892 |
| James Allison | Son | — | 26 | ~1914 |
Census Appearances
1920
Allegheny, Pennsylvania
Spouse, age 25
Allegheny, Pennsylvania · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allison |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| 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
Other, age 37
Allegheny, Pennsylvania · implied b. ~1893 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allison |
| Given Name | Mary H. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 23 |
| 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
Head, age 48
Allegheny-County, Pennsylvania · implied b. ~1892 — 3 household members
| Surname | Allison |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Tarentum Borough |
| 1935 Residence (County) | Allegheny |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 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 Mary Allison across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Allison
Head · 1940 · age 48 · b. ~1892 · 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
35 people indexed on this census page (nara:1940:m-t0627-03419-00200)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Allison THIS PERSON | 48 | Head | — | Pennsylvania |
| 42 | James Allison | 26 | Son | Chemist | Pennsylvania |
| 43 | Peter Lovasik | 25 | Step-son | — | Czechoslovakia |
| 45 | Paul Kristofek | 65 | Head | — | Czechoslovakia |
| 46 | Eve Kristofek | 58 | Wife | Masher | Czechoslovakia |
| 47 | Vernie Kristofek | 19 | Daughter | Housework | Pennsylvania |
| 48 | Paul Jr. Kristofek | 17 | Son | — | Pennsylvania |
| 49 | Betty Kristofek | 13 | Daughter | — | Pennsylvania |
| 51 | Joseph Chodelka | 42 | Head | — | Czechoslovakia |
| 52 | Elizabeth Chodelka | 38 | Wife | — | Czechoslovakia |
| 53 | Mary Barnas | 18 | Step-daughter | Housework | Pennsylvania |
| 54 | Michael Barnas | 16 | Step-son | — | Pennsylvania |
| 55 | Edward Chodelka | 7 | Son | — | Pennsylvania |
| 56 | Essey Bowser | 22 | Nephew | — | Pennsylvania |
| 57 | Fred Jr. Danner | 49 | Head | Bricklayer | Pennsylvania |
| 58 | Harriet Danner | 45 | Wife | Supervisor | Michigan |
| 59 | Olive Danner | 19 | Daughter | — | Pennsylvania |
| 60 | Phineas Danner | 15 | Son | — | Pennsylvania |
| 61 | Harry Danner | 12 | Son | — | Pennsylvania |
| 63 | Jules Cullers | 38 | Head | Electrician | Pennsylvania |
| 64 | Frances Cullers | 34 | Wife | — | Pennsylvania |
| 65 | Margaret Cullers | 14 | Daughter | — | Pennsylvania |
| 66 | Jo Ann Cullers | 9 | Daughter | — | Pennsylvania |
| 67 | Barbara Cullers | 5 | Daughter | — | Pennsylvania |
| 69 | Peter Stewart | 62 | Head | Rougher | Pennsylvania |
| 70 | Ella Stewart | 54 | Wife | — | West Virginia |
| 71 | Roland Coberly | 11 | Grand-son | — | Pennsylvania |
| 72 | Catherine Coberly | 10 | Grand-daughter | — | Pennsylvania |
| 73 | Keith Caporal | 3 | Grand-son | — | Pennsylvania |
| 74 | Joseph Korman | 37 | Head | Local Packer | Pennsylvania |
| 75 | Louise Korman | 36 | Wife | — | Pennsylvania |
| 76 | Evelyn Korman | 13 | Daughter | — | Pennsylvania |
| 77 | Charles Korman | 12 | Son | — | Pennsylvania |
| 78 | Dorothy Korman | 10 | Daughter | — | Pennsylvania |
| 79 | Howard Daugherty | 68 | Head | Brakeman | Pennsylvania |
Related Census Records
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)