MC
Mary Cleary — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Cleary across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Cleary |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Homestead |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Homestead |
| Est. Birth Year | ~1922 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| James Cleary | Head | — | 41 | ~1899 |
| Constance Cleary | Daughter | — | 16 | ~1924 |
| James Cleary | Son | — | 14 | ~1926 |
| Isabella Cleary | Spouse | — | 41 | ~1899 |
| Mary Cleary | Daughter | — | 18 | ~1922 |
| John Cleary | Son | — | 12 | ~1928 |
| Milton Cleary | Son | — | 9 | ~1931 |
| Richard Cleary | Son | — | 4 | ~1936 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 7
Allegheny, Pennsylvania · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cleary |
| Given Name | Mary K |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | No. Ireland |
| Mother's Birthplace | Irish Free State |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 18
Allegheny-County, Pennsylvania · implied b. ~1922 — 8 household members
| Surname | Cleary |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Homestead |
| 1935 Residence (County) | Allegheny |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | Hs 4 |
| 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 Mary Cleary across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cleary
Daughter · 1940 · age 18 · b. ~1922 · Pennsylvania
★ You are viewing this record
Sibling
James Cleary
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milton Cleary
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Cleary
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Constance Cleary
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Cleary
Sibling · 1940 · age 4
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-t0627-03406-00489)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Barbara Mitrick | 60 | Wife | — | Hungary |
| 2 | John Mitrick | 27 | Son | Marker | Pennsylvania |
| 3 | Joseph Mitrick | 25 | Son | Laborer | Pennsylvania |
| 4 | Stephen Mitrick | 19 | Son | Laborer | Pennsylvania |
| 5 | Paul Mitrick | 17 | Son | — | Pennsylvania |
| 6 | Joseph Turcovsky | 39 | Head | Yard Clerk | Pennsylvania |
| 7 | Mary Turcovsky | 37 | Wife | — | Hungary |
| 8 | Florence Turcovsky | 9 | Daughter | — | Pennsylvania |
| 9 | Bernard Turcovsky | 8 | Son | — | Pennsylvania |
| 10 | David Schwartz | 41 | Head | Clerk | Pennsylvania |
| 11 | Maxine Schwartz | 25 | Wife | — | Pennsylvania |
| 12 | Albert E. Sabal | 34 | Head | Machinist | Hungary |
| 13 | Ann Sabal | 27 | Wife | — | Pennsylvania |
| 14 | Rosemarie Sabal | 2 | Daughter | — | Pennsylvania |
| 15 | John Burgant | 29 | Head | Painter | Pennsylvania |
| 16 | Jane Burgant | 29 | Wife | — | Pennsylvania |
| 17 | Donald Burgant | 9 | Son | — | Pennsylvania |
| 18 | Patricia Burgant | 6 | Daughter | — | Pennsylvania |
| 19 | James Cleary | 41 | Head | Machinist | Pennsylvania |
| 20 | Isabella Cleary | 41 | Wife | — | Pennsylvania |
| 21 | Mary Cleary THIS PERSON | 18 | Daughter | — | Pennsylvania |
| 22 | Constance Cleary | 16 | Daughter | — | Pennsylvania |
| 23 | James Cleary | 14 | Son | — | Pennsylvania |
| 24 | John Cleary | 12 | Son | — | Pennsylvania |
| 25 | Milton Cleary | 9 | Son | — | Pennsylvania |
| 26 | Richard Cleary | 4 | Son | — | Pennsylvania |
| 27 | Elva Donaldson | 62 | Head | — | Pennsylvania |
| 28 | Russell Donaldson | 32 | Son | Gas Station Attendant | Pennsylvania |
| 29 | Eugene Donaldson | 30 | Son | Clerk | Pennsylvania |
| 30 | Merle Donaldson | 25 | Son | Utility | Pennsylvania |
| 31 | Alex Sanatriz | 37 | Head | Cashier | Pennsylvania |
| 32 | James Sanatriz | 12 | Son | — | Pennsylvania |
| 33 | John J. Melligan | 35 | Boarder | Laborer | Pennsylvania |
| 34 | Henry Farrington | 41 | Head | Steel Pourer | Pennsylvania |
| 35 | Ruth Farrington | 38 | Wife | — | Pennsylvania |
| 36 | Henry Jr. Farrington | 15 | Son | — | Pennsylvania |
| 37 | Phyllis Farrington | 11 | Daughter | — | Pennsylvania |
| 38 | George Boeltz | 59 | Head | Laborer | Pennsylvania |
| 39 | Lena Boeltz | 57 | Wife | — | Pennsylvania |
| 40 | Edna Boeltz | 18 | Daughter | New Worker | 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)