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John Mcnulty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this John Mcnulty across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 8-person household.
Age 17
b. ~1923
Male
Son
Born: Penna
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | McNulty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1923 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Helen Mcnulty | Daughter | — | 19 | ~1921 |
| Catherine Mcnulty | Daughter | — | 25 | ~1915 |
| Thomas Mcnulty | Head | — | 53 | ~1887 |
| Alice Mcnulty | Daughter | — | 21 | ~1919 |
| Alma Mcnulty | Daughter | — | 12 | ~1928 |
| Margaret Mcnulty | Daughter | — | 15 | ~1925 |
| Elizabeth Mcnulty | Spouse | — | 49 | ~1891 |
| John Mcnulty | Son | — | 17 | ~1923 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 8
Philadelphia, Pennsylvania · implied b. ~1922 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNulty |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Son, age 17
Philadelphia-County, Pennsylvania · implied b. ~1923 — 8 household members
| Surname | McNulty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| 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 John Mcnulty across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mcnulty
Son · 1940 · age 17 · b. ~1923 · Pennsylvania
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Sibling
Margaret Mcnulty
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alma Mcnulty
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mcnulty
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Mcnulty
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mcnulty
Sibling · 1940 · age 25
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-t0627-03703-00357)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Sawinger | 17 | Daughter | — | Penna |
| 2 | Theodore Sawinger | 15 | Son | — | Penna |
| 3 | Lester Broten | 25 | Head | Baker | Minnesota |
| 4 | Laura Broten | 27 | Wife | Hairdresser | So Dakota |
| 5 | Richard Broten | 2 | Son | — | California |
| 6 | Lyla Schroeder | 25 | Lodger | Truck Driver | So Dakota |
| 7 | Bertha M. Sutcliffe | 58 | Head | — | Eire |
| 8 | John Sutcliffe | 39 | Son | Tester | Penna |
| 9 | Dorothy Sutcliffe | 29 | Daughter | Stenographer | Penna |
| 10 | William Sutcliffe | 25 | Son | Helper | Penna |
| 11 | Kevin Sutcliffe | 23 | Son | Stock Clerk | Penna |
| 12 | Helen Sutcliffe | 21 | Daughter | Clerk | Penna |
| 13 | Walter Sutcliffe | 19 | Son | Apprentice Printer | Penna |
| 14 | Thomas Sutcliffe | 17 | Son | Newspaper Worker | Penna |
| 15 | Thomas Carey | 42 | Head | Stationary Engineer | Eire |
| 16 | Margaret Carey | 41 | Wife | — | Eire |
| 17 | Helen T. Carey | 12 | Daughter | — | Penna |
| 18 | Thomas Carey | 9 | Son | — | Penna |
| 19 | Cathleen Carey | 8 | Daughter | — | Penna |
| 20 | John Carey | 6 | Son | — | Penna |
| 21 | Margaret Carey | 4 | Daughter | — | Penna |
| 22 | James Carey | 3 | Son | — | Penna |
| 23 | Thomas Mcnulty | 53 | Head | Stationary Engineer | Eire |
| 24 | Elizabeth Mcnulty | 49 | Wife | — | Eire |
| 25 | Catherine Mcnulty | 25 | Daughter | — | Penna |
| 26 | Alice Mcnulty | 21 | Daughter | Clerk | Penna |
| 27 | Helen Mcnulty | 19 | Daughter | Stenographer | Penna |
| 28 | John Mcnulty THIS PERSON | 17 | Son | — | Penna |
| 29 | Margaret Mcnulty | 15 | Daughter | — | Penna |
| 30 | Alma Mcnulty | 12 | Daughter | — | Penna |
| 31 | Ida Chandler | 67 | Head | — | Penna |
| 32 | Albert Shaffer | 49 | Head | Printer | Penna |
| 33 | Marie Shaffer | 44 | Wife | — | Penna |
| 34 | Joseph Shaffer | 21 | Son | Printer | Penna |
| 35 | Kenneth Shaffer | 15 | Son | — | Penna |
| 36 | Leslie Hosephos | 23 | Lodger | Bus Boy | Penna |
| 37 | Luke Lavin | 30 | Head | Plumber | Penna |
| 38 | Margaret Lavin | 34 | Wife | — | Eire |
| 39 | Robert Flanagan | 53 | Head | Machinist | Ireland |
| 40 | Mabel Flanagan | 52 | Wife | — | Scotland |
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)