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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.~1927), then head of a 9-person household.
Age 13
b. ~1927
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | McNulty |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Revere City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Revere City |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edward Mcnulty | Son | — | 5 | ~1935 |
| Alice Mcnulty | Daughter | — | 16 | ~1924 |
| Thomas Mcnulty | Son | — | 9 | ~1931 |
| Carole Mcnulty | Daughter | — | 1 | ~1939 |
| Mary Mcnulty | Spouse | — | 37 | ~1903 |
| James Mcnulty | Head | — | 41 | ~1899 |
| Ann Mcnulty | Daughter | — | 11 | ~1929 |
| Dora Mcnulty | Daughter | — | 6 | ~1934 |
| Mary Mcnulty | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 3
Suffolk, Massachusetts · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNulty |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 13
Suffolk-County, Massachusetts · implied b. ~1927 — 9 household members
| Surname | McNulty |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Revere City |
| 1935 Residence (County) | Suffolk |
| Highest Grade | No 5 |
| 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 13 · b. ~1927 · Massachusetts
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Sibling
Thomas Mcnulty
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Mcnulty
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carole Mcnulty
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Mcnulty
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dora Mcnulty
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Mcnulty
Sibling · 1940 · age 16
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
40 people indexed on this census page (nara:1940:m-t0627-01644-00122)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter Smalley | 43 | Head | Iron Worker | Massachusetts |
| 2 | Gertrude Smalley | 38 | Wife | — | Massachusetts |
| 3 | Bernice Smalley | 14 | Daughter | — | Massachusetts |
| 4 | Thelma Smalley | 12 | Daughter | — | Massachusetts |
| 5 | Mary Hansen | 62 | Lodger | Domestic | Canada French |
| 6 | John Palladino | 43 | Head | Salesman | Massachusetts |
| 7 | Yvonne Palladino | 38 | Wife | — | France |
| 8 | John Jr. Palladino | 19 | Son | Frameer | Massachusetts |
| 9 | Louis Palladino | 17 | Son | Frameer | Massachusetts |
| 10 | Marie Palladino | 9 | Daughter | — | Massachusetts |
| 11 | Francis King | 44 | Head | Iron Worker | Massachusetts |
| 12 | Mary E. King | 23 | Wife | — | Massachusetts |
| 13 | William King | 4 | Son | — | Massachusetts |
| 14 | Carol King | 2 | Daughter | — | Massachusetts |
| 15 | Richard Robson | 63 | Head | Machinist | England |
| 16 | Martha Robson | 40 | Daughter | — | Massachusetts |
| 17 | Allen Robson | 15 | Grandson | New Worker | Massachusetts |
| 18 | Richard Robson | 5 | Grandson | — | Massachusetts |
| 19 | Charles Walton | 84 | Head | — | Finland |
| 20 | Emily Walton | 78 | Wife | — | Sweden |
| 21 | Nathan Howell | 71 | Head | — | Canada French |
| 22 | Alice Howell | 65 | Wife | — | Canada French |
| 23 | Gertrude Howell | 20 | Daughter | New Worker | Massachusetts |
| 24 | Joseph Manning | 29 | Daughter | Elevator Op | Canada French |
| 25 | Margaret Manning | 20 | Daughter | — | Massachusetts |
| 26 | Alice Manning | 6 | Granddaughter | — | Massachusetts |
| 27 | Joseph Jr. Manning | 5 | Grandson | — | Massachusetts |
| 28 | Mary Di Giovanni | 58 | Head | — | Italy |
| 29 | Mary Di Giovanni | 23 | Daughter | Linker | Massachusetts |
| 30 | Anthony Di Giovanni | 21 | Son | Porter | Massachusetts |
| 31 | Leo Di Giovanni | 27 | Son | Washer | Massachusetts |
| 32 | James Mcnulty | 41 | Head | Clerk | Massachusetts |
| 33 | Mary Mcnulty | 37 | Wife | — | Massachusetts |
| 34 | Alice Mcnulty | 16 | Daughter | — | Massachusetts |
| 35 | Mary Mcnulty THIS PERSON | 13 | Daughter | — | Massachusetts |
| 36 | Ann Mcnulty | 11 | Daughter | — | Massachusetts |
| 37 | Thomas Mcnulty | 9 | Son | — | Massachusetts |
| 38 | Dora Mcnulty | 6 | Daughter | — | Massachusetts |
| 39 | Edward Mcnulty | 5 | Son | — | Massachusetts |
| 40 | Carole Mcnulty | 1 | Daughter | — | 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)