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Mary Lowry — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Mary Lowry across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Lowry |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Waitress |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 148 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Waitress |
| Township / Ward | Pittsburgh City |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Julia Lowry | Daughter | — | 15 | ~1925 |
| Mary Lowry | Daughter | — | 18 | ~1922 |
| Irene Lowry | Spouse | — | 39 | ~1901 |
| John Lowry | Son | — | 16 | ~1924 |
| Geraldine Lowry | Daughter | — | 7 | ~1933 |
| Joseph Lowry | Head | — | 45 | ~1895 |
| Adel Lowry | Daughter | — | 9 | ~1931 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 8
Allegheny, Pennsylvania · implied b. ~1922 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lowry |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 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
Daughter, age 18
Allegheny-County, Pennsylvania · implied b. ~1922 — 7 household members
| Surname | Lowry |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Occupation | Waitress |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 148 |
| Highest Grade | H 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 Lowry across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lowry
Daughter · 1940 · age 18 · b. ~1922 · Pennsylvania
★ You are viewing this record
Sibling
John Lowry
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Adel Lowry
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine Lowry
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Lowry
Sibling · 1940 · age 15
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-t0627-03670-00413)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Maddigan | 28 | Head | Printer | Pennsylvania |
| 2 | Mary Maddigan | 25 | Wife | — | Pennsylvania |
| 3 | John Maddigan | 1 | Son | — | Pennsylvania |
| 4 | Jacob Hertle | 45 | Head | Clerk | Pennsylvania |
| 5 | Mary Hertle | 42 | Wife | — | Pennsylvania |
| 6 | Jacob Jr. Hertle | 18 | Son | — | Pennsylvania |
| 7 | Robert J. Hertle | 16 | Son | — | Pennsylvania |
| 8 | Paul F. Hertle | 14 | Son | — | Pennsylvania |
| 9 | Elizabeth Hertle | 12 | Daughter | — | Pennsylvania |
| 10 | Albert H. Hertle | 10 | Son | — | Pennsylvania |
| 11 | William G. Hertle | 6 | Son | — | Pennsylvania |
| 12 | Walter Mccullough | 33 | Head | Truck Driver | Pennsylvania |
| 13 | Sarah Mccullough | 30 | Wife | — | Pennsylvania |
| 14 | James J. Kelley | 45 | Head | Salesman | Ireland |
| 15 | Lillian Kelley | 34 | Wife | — | Massachusetts |
| 16 | Dorothy G. Kelley | 0 | Daughter | — | Pennsylvania |
| 17 | Joseph Lowry | 45 | Head | Painter | Pennsylvania |
| 18 | Irene Lowry | 39 | Wife | — | Pennsylvania |
| 19 | Mary Jane Lowry THIS PERSON | 18 | Daughter | Waitress | Pennsylvania |
| 20 | John Lowry | 16 | Son | — | Pennsylvania |
| 21 | Julia Lowry | 15 | Daughter | — | Pennsylvania |
| 22 | Adel Lowry | 9 | Daughter | — | Pennsylvania |
| 23 | Geraldine Lowry | 7 | Daughter | — | Pennsylvania |
| 24 | Jean Grossit | 55 | Head | Baker | Germany |
| 25 | Verner Grossit | 18 | Son | — | Pennsylvania |
| 26 | Lenord Grossit | 17 | Son | — | Pennsylvania |
| 27 | Edward Williams | 42 | Head | Brakeman | Vermont |
| 28 | Clara Williams | 41 | Wife | — | Pennsylvania |
| 29 | Edward Jr. Williams | 20 | Son | Newswriter | Pennsylvania |
| 30 | Betty Williams | 14 | Daughter | — | Pennsylvania |
| 31 | Bernard Bachner | 49 | Head | Mechanic | Pennsylvania |
| 32 | Mary Bachner | 42 | Wife | — | Pennsylvania |
| 33 | Otto Bachner | 18 | Son | — | Pennsylvania |
| 34 | Bernard Jr. Bachner | 17 | Son | — | Pennsylvania |
| 35 | Helena Bachner | 15 | Daughter | — | Pennsylvania |
| 36 | George Hauset | 44 | Head | Machinist | Germany |
| 37 | Pauline Hauset | 37 | Wife | — | Germany |
| 38 | William Radcliff | 37 | Head | Truck Driver | Pennsylvania |
| 39 | Anna Radcliff | 35 | Wife | — | Pennsylvania |
| 40 | Marylana Radcliff | 10 | Daughter | — | 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)