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Margaret Fitzpatrick — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Margaret Fitzpatrick across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Fitzpatrick |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1924 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Theresa Fitzpatrick | Daughter | — | 9 | ~1931 |
| Thomas Fitzpatrick | Son | — | 17 | ~1923 |
| John Fitzpatrick | Head | — | 47 | ~1893 |
| John Hearne | Other | — | 55 | ~1885 |
| Margaret Fitzpatrick | Daughter | — | 16 | ~1924 |
| Edward Fitzpatrick | Son | — | 20 | ~1920 |
| John Fitzpatrick | Son | — | 22 | ~1918 |
| Joseph Fitzpatrick | Son | — | 14 | ~1926 |
| Margaret Fitzpatrick | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Philadelphia, Pennsylvania
Daughter, age 5
Philadelphia, Pennsylvania · implied b. ~1925 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzpatrick |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Daughter, age 16
Philadelphia-County, Pennsylvania · implied b. ~1924 — 9 household members
| Surname | Fitzpatrick |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H 1 |
| 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 Margaret Fitzpatrick across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Fitzpatrick
Daughter · 1940 · age 16 · b. ~1924 · Pennsylvania
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Sibling
John Fitzpatrick
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Fitzpatrick
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Fitzpatrick
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Fitzpatrick
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Fitzpatrick
Sibling · 1940 · age 9
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-t0627-03733-00713)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patrick Byrne | 70 | Head | Electric | Ireland Eire |
| 2 | Nora Byrne | 54 | Wife | — | Ireland Eire |
| 3 | John Byrne | 34 | Son | Finisher | Pennsylvania |
| 4 | Helen Byrne | 25 | Daughter | Table Worker | Pennsylvania |
| 5 | Thomas Byrne | 23 | Son | Helper | Pennsylvania |
| 6 | Henry Byrne | 20 | Son | Shipping Clerk | Pennsylvania |
| 7 | Catherine Byrne | 17 | Daughter | — | Pennsylvania |
| 8 | Martin O'Halloran | 61 | Head | Helper | Ireland Eire |
| 9 | Winifred O'Halloran | 61 | Wife | — | Ireland Eire |
| 10 | Michael O'Halloran | 31 | Son | Manager | Pennsylvania |
| 11 | Catherine O'Halloran | 29 | Daughter | Inspector | Pennsylvania |
| 12 | Esther O'Halloran | 27 | Daughter | Clerical | Pennsylvania |
| 13 | Winifred O'Halloran | 24 | Daughter | Clerical | Pennsylvania |
| 14 | Martin O'Halloran | 22 | Son | — | Pennsylvania |
| 15 | John J. Fitzpatrick | 47 | Head | Dressmaker | Pennsylvania |
| 16 | Margaret Fitzpatrick | 48 | Wife | — | Ireland Eire |
| 17 | John Jr. Fitzpatrick | 22 | Son | Helper Electric | Pennsylvania |
| 18 | Edward Fitzpatrick | 20 | Son | — | Pennsylvania |
| 19 | Thomas Fitzpatrick | 17 | Son | — | Pennsylvania |
| 20 | Joseph Fitzpatrick | 14 | Son | — | Pennsylvania |
| 21 | Theresa Fitzpatrick | 9 | Daughter | — | Pennsylvania |
| 22 | John Hearne | 55 | Brother-in-law | Helper | Ireland Eire |
| 23 | Margaret Fitzpatrick THIS PERSON | 16 | Daughter | — | Pennsylvania |
| 24 | Joseph Reilly | 37 | Head | Distributor | Pennsylvania |
| 25 | Anna Reilly | 36 | Wife | — | Pennsylvania |
| 26 | Anna May Reilly | 14 | Daughter | — | Pennsylvania |
| 27 | Edward Sr. Reilly | 68 | Father | Tank Cleaner | Pennsylvania |
| 28 | Edward Jr. Reilly | 38 | Brother | Helper | Pennsylvania |
| 29 | Theresa Herschaft | 71 | Head | — | France |
| 30 | Leroy Watkins | 26 | Lodger | Page Boy | Pennsylvania |
| 31 | Helen Watkins | 32 | Daughter | Bank Clerk | Pennsylvania |
| 32 | Peter Stephens | 54 | Head | Owner | Pennsylvania |
| 33 | Laura Stephens | 54 | Wife | — | Pennsylvania |
| 34 | Marie Stephens | 17 | Daughter | — | Pennsylvania |
| 35 | Mary Griffin | 29 | Domestic | Maid Domestic | Pennsylvania |
| 36 | Paul Donohue | 35 | Head | Salesman | Pennsylvania |
| 37 | Charles Costello | 21 | Nephew | Machine Operator | Pennsylvania |
| 38 | Walter Costello | 21 | Nephew | Maintenance | Pennsylvania |
| 39 | John Costello | 15 | Nephew | — | Pennsylvania |
| 40 | Mary Mccork | 66 | Head | — | Pennsylvania |
Related Census Records
Search for Margaret Fitzpatrick
All Margaret Fitzpatrick Census Records Discover Fitzpatrick Family TreeAbout 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)