MF
Mary Foley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Foley across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 2-person household.
Age 74
b. ~1866
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Foley |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Mt Oliver |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Mt Oliver |
| Est. Birth Year | ~1866 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Foley | Head | — | 74 | ~1866 |
| Joseph Foley | Son | — | 35 | ~1905 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 52
Allegheny, Pennsylvania · implied b. ~1868 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foley |
| Given Name | Mary |
| Relationship to Head | Servant |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1884 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Servant |
| Industry | Private Family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Allegheny, Pennsylvania
Other, age 63
Allegheny, Pennsylvania · implied b. ~1867 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foley |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1891 |
| Age at First Marriage | 23 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | Irish |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Allegheny-County, Pennsylvania
Head, age 74
Allegheny-County, Pennsylvania · implied b. ~1866 — 2 household members
| Surname | Foley |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Mt Oliver |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Foley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Foley
Head · 1940 · age 74 · b. ~1866 · Pennsylvania
★ You are viewing this record
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-t0627-03412-00161)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ruth Mutchler | 31 | Wife | — | Pennsylvania |
| 2 | Ruth G. Mutchler | 4 | Daughter | — | Pennsylvania |
| 3 | Elizabeth May Mutchler | 1 | Daughter | — | Pennsylvania |
| 4 | George Pack | 23 | Head | Clerk | Pennsylvania |
| 5 | Lillian Pack | 24 | Wife | Saleslady | Pennsylvania |
| 6 | Elmer Jr. Mixter | 46 | Head | Plumber | Pennsylvania |
| 7 | Atillia Mixter | 42 | Wife | — | Pennsylvania |
| 8 | Marion Mixter | 12 | Daughter | — | Pennsylvania |
| 9 | Alice Mixter | 7 | Daughter | — | Pennsylvania |
| 10 | Virginia Mixter | 5 | Daughter | — | Pennsylvania |
| 11 | Elmer Jr. Mixter | 1 | Son | — | Pennsylvania |
| 12 | Hunter P. Wharton | 39 | Head | Business Agent | Pennsylvania |
| 13 | Edna M. Wharton | 39 | Wife | — | Pennsylvania |
| 14 | Alice Brichel | 60 | Head | — | Pennsylvania |
| 15 | Walter Brichel | 25 | Son | Truck Driver | Pennsylvania |
| 16 | George Roell | 30 | Son in law | Truck Driver | Pennsylvania |
| 17 | Mary Roell | 29 | Daughter | — | Pennsylvania |
| 18 | Paul Roell | 1 | Grandson | — | Pennsylvania |
| 19 | Jane Finn | 44 | Head | Janitress | Pennsylvania |
| 20 | Edmund Finn | 21 | Son | Truck Helper | Pennsylvania |
| 21 | William Finn | 16 | Son | — | Pennsylvania |
| 22 | Wilfred Kendall | 41 | Head | Letter Carrier | Pennsylvania |
| 23 | Anna R. Kendall | 37 | Wife | — | Pennsylvania |
| 24 | Catherine Kendall | 17 | Daughter | — | Pennsylvania |
| 25 | Wilfred Kendall | 16 | Son | — | Pennsylvania |
| 26 | Ray Kendall | 13 | Son | — | Pennsylvania |
| 27 | Howard Kendall | 9 | Son | — | Pennsylvania |
| 28 | Edward Kendall | 1 | Son | — | Pennsylvania |
| 29 | Catherine Fischbach | 46 | Head | Janitress | Pennsylvania |
| 30 | Joseph Fischbach | 24 | Son | Grinder | Pennsylvania |
| 31 | Raymond Fischbach | 22 | Son | New Worker | Pennsylvania |
| 32 | Mary Foley THIS PERSON | 74 | Head | — | Ireland |
| 33 | Joseph Foley | 35 | Son | Elevator Operator | Pennsylvania |
| 34 | Max Reichke | 50 | Head | Labor | Austria |
| 35 | Sophie Reichke | 51 | Wife | — | Austria |
| 36 | Philip Reichke | 23 | Son | Labor | Pennsylvania |
| 37 | Minnie Reichke | 21 | Daughter | Clerk | Pennsylvania |
| 38 | Julio Reichke | 17 | Son | — | Pennsylvania |
| 39 | Arthur A. Loutsch | 51 | Head | Car Operator | Pennsylvania |
| 40 | Earl L. Loutsch | 55 | 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)