MC
Mary Cullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Cullen across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 8-person household.
Age 50
b. ~1890
Female
Spouse
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Cullen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Boston |
| Est. Birth Year | ~1890 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Lynch | Other | — | 25 | ~1915 |
| Alfred De Marcio | Head | — | 26 | ~1914 |
| Thomas Cullen | Son | — | 19 | ~1921 |
| Mildred Ford-Coughlin | Daughter | — | 50 | ~1890 |
| Charles Cullen | Son | — | 15 | ~1925 |
| Alfred De Marcio | Son | — | 2 | ~1938 |
| Theodore De Marcio | Spouse | — | 23 | ~1917 |
| Mary Cullen | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Middlesex, Massachusetts
Spouse, age 41
Middlesex, Massachusetts · implied b. ~1889 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cullen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 19 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Suffolk-County, Massachusetts
Spouse, age 50
Suffolk-County, Massachusetts · implied b. ~1890 — 8 household members
| Surname | Cullen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Cullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cullen
Spouse · 1940 · age 50 · b. ~1890 · Massachusetts
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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-t0627-01678-00193)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Stephen F. Mchugh | 25 | Head | Lineman | Mass |
| 2 | Ellen J. Mchugh | 26 | Wife | Comptometer Operator | Mass |
| 3 | Auguste E. Belanger | 48 | Head | Welder | Canada |
| 4 | Jeanne Belanger | 30 | Wife | — | Canada |
| 5 | Bertha E. Farrell | 53 | Head | — | Mass |
| 6 | Bacy D. Hodge | 65 | Head | — | Mass |
| 7 | George Lee | 39 | Head | Cleaner | China |
| 8 | Toy Lee | 52 | Lodger | Laundry | China |
| 9 | Everett E. Brookes | 52 | Head | Milkman | Mass |
| 10 | Robert Pierson | 34 | Lodger | Laborer | Mass |
| 11 | Julia Drake | 52 | Wife | — | Mass |
| 12 | Margaret Brookes | 15 | Daughter | — | Mass |
| 13 | Miah Marshall | 43 | Head | Waitress | Mass |
| 14 | Isaac Frost | 50 | Lodger | Laborer | Mass |
| 15 | Mary Sculley | 33 | Head | — | Canada |
| 16 | Thomas Sculley | 30 | Son | — | Mass |
| 17 | Patrick Sculley | 28 | Son | Janitor | Mass |
| 18 | Thomas Patton | 57 | Brother | Machinist | Canada |
| 19 | Patrick Callopy | 50 | Lodger | Salesman | Mass |
| 20 | Callopy | 5 | — | — | Mass |
| 21 | Agnes E. Baldwin | 21 | Wife | — | Mass |
| 22 | Robert Baldwin | 22 | Head | Tallying | Mass |
| 23 | Mario Trombetta | 57 | Head | Mechanic | Italy |
| 24 | Angela Trombetta | 47 | Wife | — | Italy |
| 25 | Tito Trombetta | 25 | Son | Office Clerk | Italy |
| 26 | Beatrice Trombetta | 15 | Daughter | Office Work | Mass |
| 27 | Lucy Trombetta | 12 | Daughter | — | Mass |
| 28 | Dallas Martin | 38 | Wife | — | Mass |
| 29 | Thomas Martin | 37 | Head | Metal Worker | Ireland |
| 30 | Alfred De Marcio | 26 | Head | Restrant | Mass |
| 31 | Theodore De Marcio | 23 | Wife | — | Mass |
| 32 | Alfred Jr. De Marcio | 2 | Son | — | Mass |
| 33 | Mary Cullen THIS PERSON | 50 | Wife | — | Ireland |
| 34 | Thomas Cullen | 19 | Son | Shipper | Mass |
| 35 | Charles Cullen | 15 | Son | — | Mass |
| 36 | Mildred Ford-Coughlin | 50 | Daughter | — | Mass |
| 37 | Mary Lynch | 25 | Servant | House Keeper | Mass |
| 38 | Zilla Linehan | 82 | Head | — | Mass |
| 39 | William C. Corrigan | 67 | Head | Watchman | Mass |
| 40 | Mary Corrigan | 63 | Wife | — | Mass |
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)