JM
John Mcnulty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Norfolk-County, Massachusetts
Our Model Tree links this John Mcnulty across the 1930 and 1940 US Censuses in Norfolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Norfolk-County, Massachusetts |
| Surname | McNulty |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Milton |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Mcnulty | Daughter | — | 16 | ~1924 |
| John Mcnulty | Son | — | 20 | ~1920 |
| Bernard Mcnulty | Son | — | 22 | ~1918 |
| John Mcnulty | Head | — | 49 | ~1891 |
| Agnes Mcnulty | Spouse | — | 42 | ~1898 |
| Agnes Mcnulty | Daughter | — | 9 | ~1931 |
| Mary Mcnulty | Daughter | — | 18 | ~1922 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 10
Suffolk, Massachusetts · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNulty |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Norfolk-County, Massachusetts
Son, age 20
Norfolk-County, Massachusetts · implied b. ~1920 — 7 household members
| Surname | McNulty |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 20 · b. ~1920 · Massachusetts
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Sibling
Bernard Mcnulty
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mcnulty
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mcnulty
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes 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 — Norfolk-County, Massachusetts
Open full size
1940 US Federal Census — Norfolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01628-00476)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ann G. Kelley | 22 | Daughter | — | Same place |
| 2 | Mary A. Acton | 50 | Lodger | Weaver | Massachusetts |
| 3 | John J. Fitzgerald | 48 | Head | Inspector | Massachusetts |
| 4 | Esther J. Fitzgerald | 47 | Wife | — | Massachusetts |
| 5 | Jacqueline Fitzgerald | 13 | Daughter | — | Massachusetts |
| 6 | Charles A. Brown | 55 | Head | Painter | New Hampshire |
| 7 | Frances E. Brown | 65 | Wife | — | Massachusetts |
| 8 | John J. Gately | 44 | Brother-in-law | Sheet Metal | Massachusetts |
| 9 | John G. Mcnulty | 49 | Head | Painter | Massachusetts |
| 10 | Agnes A. Mcnulty | 42 | Wife | — | Massachusetts |
| 11 | Bernard H. Mcnulty | 22 | Son | Sheet Metal Helper | Massachusetts |
| 12 | John J. Mcnulty THIS PERSON | 20 | Son | — | Massachusetts |
| 13 | Mary Allison Mcnulty | 18 | Daughter | Filing | Massachusetts |
| 14 | Dorothy F. Mcnulty | 16 | Daughter | — | Massachusetts |
| 15 | Agnes M. Mcnulty | 9 | Daughter | — | Massachusetts |
| 16 | Susan A. Barker | 72 | Head | — | Scotland |
| 17 | Abraham Barker | 75 | Husband | Finisher | Connecticut |
| 18 | Robert E. Coughlan | 38 | Son-in-law | Clerk | Massachusetts |
| 19 | Susan B. Coughlan | 29 | Daughter | — | Massachusetts |
| 20 | Robert E. Coughlan | 12 | Grandson | — | Massachusetts |
| 21 | Marie Coughlan | 6 | Granddaughter | — | Massachusetts |
| 22 | Clare H. Baker | 42 | Head | Tank Wagon Salesman | Massachusetts |
| 23 | Nellie H. Baker | 42 | Wife | — | Massachusetts |
| 24 | John D. Hourihan | 34 | Head | Salesman | Massachusetts |
| 25 | Ann Hourihan | 32 | Wife | — | Massachusetts |
| 26 | John Jr. Hourihan | 9 | Son | — | Massachusetts |
| 27 | Barbara A. Hourihan | 2 | Daughter | — | Massachusetts |
| 28 | Bartholomew O'Donnell | 46 | Lodger | Dispatcher | Massachusetts |
| 29 | Henry P. Donahue | 40 | Head | Estimator | Massachusetts |
| 30 | Frances V. Donahue | 37 | Wife | — | Massachusetts |
| 31 | Henry P. Jr. Donahue | 10 | Son | — | Massachusetts |
| 32 | Robert F. Donahue | 8 | Son | — | Massachusetts |
| 33 | Charles M. Donahue | 3 | Son | — | Massachusetts |
| 34 | Johanna H. Murphy | 73 | Mother-in-law | — | Massachusetts |
| 35 | Ralph Mcclintock | 50 | Head | Operator | Eire Free State |
| 36 | Mary A. Mcclintock | 36 | Wife | — | Eire Free State |
| 37 | Joseph B. Bowen | 50 | Head | Painter | Massachusetts |
| 38 | Wilhelmina T. Bowen | 50 | Wife | — | Nova Scotia |
| 39 | Joseph B. Jr. Bowen | 22 | Son | Draftsman | Massachusetts |
| 40 | Joan Bowen | 17 | Daughter | — | Massachusetts |
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)