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Mary Gillespie — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Mary Gillespie across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 8-person household.
Age 20
b. ~1920
Female
Daughter
Born: Irish Free State
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Gillespie |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Phila. |
| 1935 Residence (County) | Phila. |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Counter Girl |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 228 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
| Occupation | Counter Girl |
| Township / Ward | Phila |
| Est. Birth Year | ~1920 |
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 |
|---|---|---|---|---|
| Margaret Gillespie | Daughter | — | 24 | ~1916 |
| Charles Gillespie | Head | — | 52 | ~1888 |
| Theresa Gillespie | Daughter | — | 11 | ~1929 |
| John Gillespie | Son | — | 18 | ~1922 |
| Anna Gillespie | Daughter | — | 9 | ~1931 |
| Mary Gillespie | Daughter | — | 20 | ~1920 |
| Margaret Gillespie | Spouse | — | 49 | ~1891 |
| Edward Gillespie | Son | — | 21 | ~1919 |
Census Appearances
1930
Philadelphia, Pennsylvania
Daughter, age 9
Philadelphia, Pennsylvania · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gillespie |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Irish Free State |
| Naturalization Status | Alien |
| Year of Immigration | 1929 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Philadelphia-County, Pennsylvania
Daughter, age 20
Philadelphia-County, Pennsylvania · implied b. ~1920 — 8 household members
| Surname | Gillespie |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Phila. |
| 1935 Residence (County) | Phila. |
| Naturalization Status | Alien |
| Occupation | Counter Girl |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 228 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
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 Gillespie across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Gillespie
Daughter · 1940 · age 20 · b. ~1920 · Pennsylvania
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Sibling
Theresa Gillespie
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Gillespie
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Gillespie
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Gillespie
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Gillespie
Sibling · 1940 · age 24
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
38 people indexed on this census page (nara:1940:m-t0627-03728-00269)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marie Nasser | 29 | Wife | Cigar Maker | Delaware |
| 42 | Robert Nasser | 13 | Son | — | Maryland |
| 43 | William Nasser | 4 | Son | — | Penna. |
| 44 | William Salmon | 65 | Father-in-law | Dairyman | Delaware |
| 45 | Edith Salmon | 56 | Mother-in-law | — | Penna. |
| 46 | Phyllis Theo | 18 | Sister-in-law | Mender | Delaware |
| 47 | Phyllis Theo | 16 | Sister-in-law | — | New Jersey |
| 48 | William Jr. Theo | 14 | Brother-in-law | — | New Jersey |
| 49 | Lloyd Theo | 12 | Brother-in-law | — | New Jersey |
| 50 | Charles Gillespie | 52 | Head | Operator | Irish Free State |
| 51 | Margaret Gillespie | 49 | Wife | — | Irish Free State |
| 52 | Margaret Gillespie | 24 | Daughter | Waitress | Irish Free State |
| 53 | Edward V. Gillespie | 21 | Son | Counter Man | Irish Free State |
| 54 | Mary Gillespie THIS PERSON | 20 | Daughter | Counter Girl | Irish Free State |
| 55 | John Gillespie | 18 | Son | — | Irish Free State |
| 56 | Theresa Gillespie | 11 | Daughter | — | Irish Free State |
| 57 | Anna Gillespie | 9 | Daughter | — | Penna. |
| 58 | Harry Shaw | 49 | Head | Driver | Penna. |
| 59 | Virginia Shaw | 47 | Wife | — | Delaware |
| 60 | Harry Jr. Shaw | 13 | Son | — | Penna. |
| 61 | Paul Shaw | 7 | Son | — | Penna. |
| 62 | Andrew J. Hawling | 40 | Head | Estimator | Penna. |
| 63 | Anna Hawling | 34 | Wife | — | Penna. |
| 64 | Andrew Jr. Hawling | 6 | Son | — | Penna. |
| 65 | James Hawling | 4 | Son | — | Penna. |
| 66 | Theodore R. Fisch | 47 | Head | Chef | Germany |
| 67 | Elizabeth Fisch | 32 | Wife | — | Hungary |
| 68 | Theodore Jr. Fisch | 9 | Son | — | Penna. |
| 69 | Emma Cinzinger | 54 | Mother-in-law | Cook | Austria |
| 70 | Frank Canino | 34 | Head | Shipper | Penna. |
| 71 | Carmel Canino | 31 | Wife | — | Penna. |
| 72 | Francis Canino | 6 | Son | — | Penna. |
| 73 | Robert Canino | 2 | Son | — | Penna. |
| 74 | James Cuthbertson | 61 | Head | Watchman | Ohio |
| 75 | Mary Cuthbertson | 56 | Wife | — | Scotland |
| 76 | Isabell Cuthbertson | 24 | Daughter | Nurse | Penna. |
| 77 | Catherine Cuthbertson | 18 | Daughter | — | Penna. |
| 80 | Christopher Studley | 44 | Head | Service Man | England |
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)