JM
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.~1927), then head of a 7-person household.
Age 13
b. ~1927
Male
Son
Born: Pennsylvania
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 | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1927 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Mcnulty | Spouse | — | 38 | ~1902 |
| John Mcnulty | Son | — | 13 | ~1927 |
| Dorothy Mcnulty | Daughter | — | 15 | ~1925 |
| Jane Mcnulty | Daughter | — | 5 | ~1935 |
| Michael Mcnulty | Son | — | 18 | ~1922 |
| Marion Mcnulty | Daughter | — | 9 | ~1931 |
| Michael Mcnulty | Head | — | 40 | ~1900 |
Census Appearances
1930
Delaware, Pennsylvania
Son, age 3
Delaware, Pennsylvania · implied b. ~1927 — 3 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 | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Son, age 13
Philadelphia-County, Pennsylvania · implied b. ~1927 — 7 household members
| Surname | McNulty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Highest Grade | 7 |
| 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 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 13 · b. ~1927 · Pennsylvania
★ You are viewing this record
Sibling
Michael Mcnulty
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Mcnulty
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mcnulty
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marion Mcnulty
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-t0627-03732-00437)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rita Riley | 24 | Daughter | Typist Clerk | Pennsylvania |
| 42 | Bernard Riley | 23 | Son | Puppet Maker | Pennsylvania |
| 43 | James Kelly | 43 | Son-in-law | Postal Clerk | Pennsylvania |
| 44 | Winifred Kelly | 37 | Daughter | — | Pennsylvania |
| 45 | James Kelly | 13 | Son | — | Pennsylvania |
| 46 | Winifred Kelly | 11 | Niece | — | Pennsylvania |
| 47 | Paul Kelly | 9 | Nephew | — | Pennsylvania |
| 48 | Mary Ellen Kelly | 4 | Niece | — | Pennsylvania |
| 49 | Margaret Kelly | 2 | Niece | — | Pennsylvania |
| 50 | Ellen Welch | 50 | Head | Charwoman | Ireland |
| 51 | Thos. W. Welch | 18 | Son | Machine Operator | Pennsylvania |
| 52 | William Beesley | 79 | Head | — | Pennsylvania |
| 53 | John Beesley | 55 | Son | Park Guard | Pennsylvania |
| 54 | Gertrude Beesley | 54 | Daughter | — | Pennsylvania |
| 55 | Ernest Childs | 61 | Head | — | Pennsylvania |
| 56 | Elizabeth Childs | 59 | Wife | — | Pennsylvania |
| 57 | Victor Jenkins | 55 | Head | Foreman | Maryland |
| 58 | Edith Jenkins | 44 | Wife | — | Pennsylvania |
| 59 | Victor Jr. Jenkins | 5 | Son | — | Pennsylvania |
| 60 | Matilda Horrocks | 47 | Head | — | Pennsylvania |
| 61 | Michael Mcnulty | 40 | Head | Truck Driver | Pennsylvania |
| 62 | Gertrude Mcnulty | 38 | Wife | — | Pennsylvania |
| 63 | Michael Mcnulty | 18 | Son | Movie Usher | Pennsylvania |
| 64 | Dorothy Mcnulty | 15 | Daughter | — | Pennsylvania |
| 65 | John Mcnulty THIS PERSON | 13 | Son | — | Pennsylvania |
| 66 | Marion Mcnulty | 9 | Daughter | — | Pennsylvania |
| 67 | Jane Mcnulty | 5 | Daughter | — | Pennsylvania |
| 68 | Mary Bayne | 59 | Head | — | Ireland |
| 69 | Samuel Bayne | 28 | Son | Machine Operator | Pennsylvania |
| 70 | William Bayne | 26 | Son | Automobile Mechanic | Pennsylvania |
| 71 | Ernest Bayne | 23 | Son | Launderer | Pennsylvania |
| 72 | Benjamin Williams | 24 | Head | — | Pennsylvania |
| 73 | Alice Janet Williams | 21 | Sister | — | Pennsylvania |
| 74 | Vincent O'Donnell | 54 | Head | Superintendent Of Machines | Pennsylvania |
| 75 | Isabell O'Donnell | 52 | Wife | — | Pennsylvania |
| 76 | Vincent Jr. O'Donnell | 28 | Son | Welder | Pennsylvania |
| 77 | Bernadette O'Donnell | 20 | Daughter | Swimming Instructor | Pennsylvania |
| 78 | Alma O'Donnell | 19 | Daughter | Inspectress | Pennsylvania |
| 79 | Gertrude O'Donnell | 14 | Daughter | — | Pennsylvania |
| 80 | Immaculate O'Donnell | 12 | 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)