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Mary Mcnulty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Mcnulty across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1901), then head of a 7-person household.
Age 39
b. ~1901
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | McNulty |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Operator |
| Industry | Telephone |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1144 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Operator |
| Township / Ward | Boston City |
| Est. Birth Year | ~1901 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Mcnulty | Spouse | — | 65 | ~1875 |
| John Mcnulty | Son | — | 30 | ~1910 |
| Henry Mcnulty | Son | — | 25 | ~1915 |
| Hugh Mcnulty | Son | — | 33 | ~1907 |
| Mary Mcnulty | Daughter | — | 39 | ~1901 |
| Neil Mcnulty | Head | — | 75 | ~1865 |
| William Mcnulty | Son | — | 35 | ~1905 |
Census Appearances
1930
Suffolk, Massachusetts
Other, age 28
Suffolk, Massachusetts · implied b. ~1902 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNulty |
| Given Name | Mary |
| Relationship to Head | Roomer |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 39
Suffolk-County, Massachusetts · implied b. ~1901 — 7 household members
| Surname | McNulty |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Operator |
| Industry | Telephone |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1144 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 Mary Mcnulty across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcnulty
Daughter · 1940 · age 39 · b. ~1901 · Massachusetts
★ You are viewing this record
Sibling
Henry Mcnulty
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mcnulty
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Mcnulty
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcnulty
Sibling · 1940 · age 30
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01682-00344)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Francis X Flanney | 7 | Son | — | Massachusetts |
| 2 | Paul D Flanney | 4 | Son | — | Massachusetts |
| 3 | Agnes B Callahan | 57 | Head | — | Massachusetts |
| 4 | Dorothy Murphy | 11 | Grand Daughter | — | Massachusetts |
| 5 | Thomas H Mcvey | 62 | Head | Granite | Massachusetts |
| 6 | Katherine A Mcvey | 59 | Wife | — | Massachusetts |
| 7 | John J Mcvey | 29 | Son | Operator | Massachusetts |
| 8 | Charles W Mcvey | 24 | Son | Operator | Massachusetts |
| 9 | Ruth J Mcvey | 22 | Daughter | — | Massachusetts |
| 10 | Margaret Mcvey | 17 | Daughter | — | Massachusetts |
| 12 | Francis E Mccourt | 52 | Head | Station | England |
| 13 | Mary C Mccourt | 49 | Wife | — | Massachusetts |
| 14 | Gerard J Mccourt | 8 | Son | — | Massachusetts |
| 15 | Patrick J Mccrory | 36 | Head | Bar Tender | Ireland |
| 16 | Bridie Mccrory | 35 | Wife | — | Free State |
| 17 | Joseph Mccrory | 8 | Son | — | Massachusetts |
| 18 | John Mccrory | 7 | Son | — | Massachusetts |
| 19 | Arthur Mccrory | 5 | Son | — | Massachusetts |
| 20 | Mary Mccrory | 4 | Daughter | — | Massachusetts |
| 21 | Katherine Mccrory | 1 | Daughter | — | Massachusetts |
| 22 | Michael Kennedy | 47 | Lodger | Laborer | Northern Ireland |
| 23 | Neil Mcnulty | 75 | Head | — | Ireland |
| 24 | Mary Mcnulty | 65 | Wife | — | Free State |
| 25 | Mary A Mcnulty THIS PERSON | 39 | Daughter | Operator | Massachusetts |
| 26 | William Mcnulty | 35 | Son | Fireman | Massachusetts |
| 27 | Hugh Mcnulty | 33 | Son | Social Worker | Massachusetts |
| 28 | John Mcnulty | 30 | Son | Attendant | Massachusetts |
| 29 | Henry Mcnulty | 25 | Son | Clerk | Massachusetts |
| 30 | Mary A Mclaughlin | 54 | Head | — | Free State |
| 31 | Margaret White | 47 | Cousin | Sales Girl | Free State |
| 32 | Pearl Carr | 24 | Lodger | Nurse | New Hampshire |
| 33 | Robert Craig | 75 | Head | — | Massachusetts |
| 34 | Bertha M Craig | 71 | Wife | — | Canada-English |
| 35 | Nevin Snyder | 44 | Lodger | Riveter | Pennsylvania |
| 36 | Genevieve Snyder | 39 | Lodger | — | Massachusetts |
| 37 | Eliza Callahan | 45 | Lodger | — | Canada-English |
| 38 | Patrick J Monahan | 48 | Head | Plumber | Massachusetts |
| 39 | Annie L Monahan | 45 | Wife | — | Massachusetts |
| 40 | Loretta A Monahan | 40 | Daughter | Stenographer | Massachusetts |
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)