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Mary Gallagher — 1940 US Census Record
Model Tree available1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Mary Gallagher across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Thomas & Mary — first a daughter (b.~1919), then head of a 12-person household.
Age 21
b. ~1919
Female
Daughter
Born: Penna
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Gallagher |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | Stock girl |
| Industry | Knitting mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 260 |
| Highest Grade | No 11 |
| 1935 Residence | Same Home |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Occupation | Stock Girl |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1919 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Gallagher | Daughter | — | 20 | ~1920 |
| Mildred Gallagher | Daughter | — | 23 | ~1917 |
| Patricia Gallagher | Daughter | — | 15 | ~1925 |
| Rita Gallagher | Daughter | — | 18 | ~1922 |
| Mary Gallagher | Daughter | — | 21 | ~1919 |
| Michael Gallagher | Head | — | 48 | ~1892 |
| Hugh Gallagher | Son | — | 10 | ~1930 |
| Robert Gallagher | Son | — | 8 | ~1932 |
| Joseph Gallagher | Son | — | 16 | ~1924 |
| James Gallagher | Son | — | 13 | ~1927 |
| William Gallagher | Son | — | 12 | ~1928 |
| Elizabeth Gallagher | Spouse | — | 46 | ~1894 |
Census Appearances
Daughter, age
Phila, Pennsylvania · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gallagher |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1930
Philadelphia, Pennsylvania
Daughter, age 11
Philadelphia, Pennsylvania · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gallager |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Daughter, age 21
Philadelphia-County, Pennsylvania · implied b. ~1919 — 12 household members
| Surname | Gallagher |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Stock girl |
| Industry | Knitting mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 260 |
| Highest Grade | No 11 |
| 1935 Residence | Same Home |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
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 Gallagher across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Thomas Gallagher (~0.92 confidence) and mother Mary Gallagher (~0.92 confidence) and father Michael Gallagher (~0.92 confidence) and mother Elizabeth Gallagher (~0.92 confidence) and father Francis Gallager (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Gallagher
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Mary Gallagher
b. ~1891
Source mother
● Household
· direct · ~0.92
Father
Michael Gallagher
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Gallagher
b. ~1894
Source mother
● Household
· direct · ~0.92
Father
Francis Gallager
b. ~1897
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Gallagher
Daughter · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
William Gallagher
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Gallagher
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Gallagher
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Gallagher
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Gallagher
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Gallagher
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Gallagher
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Gallagher
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Gallagher
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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03702-00060)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Atworth | 42 | Head | — | Penna |
| 2 | Agatha Costigan | 12 | Work. | — | Penna |
| 3 | Paul Costigan | 10 | Work. | — | Penna |
| 4 | Maryann Costigan | 9 | Work. | — | Penna |
| 5 | Milton Costigan | 6 | Work. | — | Penna |
| 6 | Elizabeth Campbell | 60 | Head | — | Penna |
| 7 | Elizabeth Campbell | 23 | Daughter | Stenographer | Penna |
| 8 | Joseph Thompson | 60 | Head | Florist | Ireland |
| 9 | Mabel Thompson | 40 | Daughter | — | Penna |
| 10 | Margaret Thompson | 45 | Sister | Housekeeper | Ireland |
| 11 | Andrew Coyle | 53 | Head | Laborer | Ireland |
| 12 | Catherine Coyle | 47 | Wife | — | Ireland |
| 13 | Thomas Coyle | 8 | Son | — | Penna |
| 14 | Anthony Coyle | 6 | Son | — | Penna |
| 15 | Alice Gallagher | 65 | Head | — | Penna |
| 16 | Elizabeth Gallagher | 33 | Daughter | Printer'S Asst | Penna |
| 17 | Cornelius Gallagher | 31 | Son | Laborer | Penna |
| 18 | John Howell | 9 | Grandson | Chauffeur | Penna |
| 19 | John Henary | 35 | Head | — | Ireland |
| 20 | Mary Henary | 39 | Wife | — | Ireland |
| 21 | Anna Henary | 12 | Daughter | — | Penna |
| 22 | John Henary | 10 | Son | — | Penna |
| 23 | James Henary | 7 | Son | — | Penna |
| 24 | Michael Morris | 66 | Head | Bartender | Ireland |
| 25 | Ellen Morris | 58 | Wife | — | Ireland |
| 26 | Joseph Morris | 24 | Son | Truck Driver | Penna |
| 27 | Mary Morris | 22 | Daughter | — | Penna |
| 28 | Bernice Mcnamee | 37 | Lodger | Operator | Ireland |
| 29 | Michael Gallagher | 48 | Head | Mech. | Illinois |
| 30 | Elizabeth Gallagher | 46 | Wife | — | Penna |
| 31 | Mildred Gallagher | 23 | Daughter | Assembler | Penna |
| 32 | Mary Gallagher THIS PERSON | 21 | Daughter | Stock Girl | Penna |
| 33 | Margaret Gallagher | 20 | Daughter | Topper | Penna |
| 34 | Rita Gallagher | 18 | Daughter | Salesgirl | Penna |
| 35 | Joseph Gallagher | 16 | Son | — | Penna |
| 36 | Patricia Gallagher | 15 | Daughter | — | Penna |
| 37 | James Gallagher | 13 | Son | — | Penna |
| 38 | William Gallagher | 12 | Son | — | Penna |
| 39 | Hugh Gallagher | 10 | Son | — | Penna |
| 40 | Robert Gallagher | 8 | Son | — | Penna |
Related Census Records
Pedigree Summary
Mary + 9 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)