MC
Mary Carey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Carey across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1893), then head of a 9-person household.
Age 47
b. ~1893
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Carey |
| Given Name | Mary J |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | House worker |
| Industry | By the day |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
| Occupation | House Worker |
| Township / Ward | Boston City |
| Est. Birth Year | ~1893 |
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 |
|---|---|---|---|---|
| Rita Carey | Daughter | — | 14 | ~1926 |
| Catherine Carey | Daughter | — | 11 | ~1929 |
| Mary Carey | Daughter | — | 16 | ~1924 |
| Theresa Carey | Daughter | — | 11 | ~1929 |
| Christopher Carey | Head | — | 45 | ~1895 |
| Line Extra | Other | — | — | |
| Christopher Carey | Son | — | 20 | ~1920 |
| Malachy Carey | Son | — | 17 | ~1923 |
| Mary Carey | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Suffolk, Massachusetts
Other, age 38
Suffolk, Massachusetts · implied b. ~1892 — 16 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Corey |
| Given Name | Mary F. |
| Relationship to Head | Boarder |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Irish Free State |
| Year of Immigration | 1894 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Chambermaid |
| Industry | Hospital |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Suffolk-County, Massachusetts
Spouse, age 47
Suffolk-County, Massachusetts · implied b. ~1893 — 9 household members
| Surname | Carey |
| Given Name | Mary J |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Occupation | House worker |
| Industry | By the day |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
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 Carey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Carey
Spouse · 1940 · age 47 · b. ~1893 · 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-t0627-01669-00609)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Albert Jr Donovan | 12 | Son | — | Massachusetts |
| 42 | Anne Donovan | 10 | Daughter | — | Massachusetts |
| 43 | Daniel Donovan | 6 | Son | — | Massachusetts |
| 44 | Thomas Donovan | 0 | Son | — | Massachusetts |
| 45 | Edward Marchant | 40 | Head | Painter | Massachusetts |
| 46 | Pearl Marchant | 39 | Wife | — | New Hampshire |
| 47 | Lorraine Marchant | 16 | Daughter | — | Massachusetts |
| 48 | Mary Marchant | 7 | Daughter | — | Massachusetts |
| 49 | Christopher Carey | 45 | Head | Plumber | Irish Free State |
| 50 | Mary J Carey THIS PERSON | 47 | Wife | House Worker | Irish Free State |
| 51 | Christopher Jr Carey | 20 | Son | Helper | Massachusetts |
| 52 | Malachy Carey | 17 | Son | Helper | Massachusetts |
| 53 | Mary Carey | 16 | Daughter | — | Massachusetts |
| 54 | Rita Carey | 14 | Daughter | — | Massachusetts |
| 55 | Catherine Carey | 11 | Daughter | — | Massachusetts |
| 56 | Theresa Carey | 11 | Daughter | — | Massachusetts |
| 57 | Line Extra | None | — | — | — |
| 58 | Joseph Masters | 44 | Head | Painter | Canada French |
| 59 | Isabel Masters | 39 | Wife | — | England |
| 60 | Danielle Masters | 13 | Daughter | — | Massachusetts |
| 61 | Claire Masters | 11 | Daughter | — | Massachusetts |
| 62 | Joseph Masters | 9 | Son | — | Massachusetts |
| 63 | Mary Masters | 6 | Daughter | — | Massachusetts |
| 64 | James Masters | 2 | Son | — | Massachusetts |
| 65 | — | None | — | — | — |
| 66 | John Griffin | 35 | Head | Truck Driver | Massachusetts |
| 67 | Loretta D Griffin | 34 | Wife | — | Massachusetts |
| 68 | John Jr Griffin | 4 | Son | — | Massachusetts |
| 69 | Daniel Griffin | 1 | Son | — | Massachusetts |
| 70 | Daniel Griffin | 59 | Head | Freight Clerk | Irish Free State |
| 71 | Mary Griffin | 57 | Wife | — | Irish Free State |
| 72 | Mary Griffin | 31 | Daughter | Clerk-Typist | Massachusetts |
| 73 | Mildred Griffin | 24 | Daughter | Stenographer | Massachusetts |
| 74 | Thomas Griffin | 22 | Son | Clerk-Typist | Massachusetts |
| 75 | Elizabeth Griffin | 21 | Daughter | Filing Clerk | Massachusetts |
| 76 | Francis Griffin | 16 | Son | — | Massachusetts |
| 77 | John Jr Yavin | 31 | Head | Route Foreman | Massachusetts |
| 78 | Phyllis Yavin | 25 | Wife | — | Lithuania |
| 79 | John Yavin | 6 | Son | — | Massachusetts |
| 80 | Leo Yavin | 4 | Son | — | 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)