MV
Mary Vincent — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Vincent across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 2-person household.
Age 64
b. ~1876
Female
Head
Born: Portugal
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Vincent |
| Given Name | Mary B. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| 1935 Residence (City) | Somerville |
| Naturalization Status | First papers filed |
| Additional Details | |
| Occupation | stitcher |
| Industry | factory |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 450 |
| Highest Grade | No 8 |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
| Occupation | Stitcher |
| Township / Ward | Somerville |
| Est. Birth Year | ~1876 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Eugenia Vincent | Daughter | — | 23 | ~1917 |
| Mary Vincent | Head | — | 64 | ~1876 |
Census Appearances
1920
Barnstable, Massachusetts
Head, age 43
Barnstable, Massachusetts · implied b. ~1877 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Vincent |
| Given Name | Marion |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| Year of Immigration | 1886 |
| Naturalization Status | Alien |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Home Owned/Rented | R |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1930
Middlesex, Massachusetts
Head, age 54
Middlesex, Massachusetts · implied b. ~1876 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Vincent |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| Naturalization Status | Alien |
| Year of Immigration | 1907 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Finisher |
| Industry | Mens clothing |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Portuguese |
| Home Owned/Rented | O |
| Home Value / Rent | 12000 |
| Radio Set | R |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1940
Middlesex-County, Massachusetts
Head, age 64
Middlesex-County, Massachusetts · implied b. ~1876 — 2 household members
| Surname | Vincent |
| Given Name | Mary B. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| 1935 Residence (City) | Somerville |
| Naturalization Status | First papers filed |
| Occupation | stitcher |
| Industry | factory |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 450 |
| Highest Grade | No 8 |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
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 Vincent across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Vincent
Head · 1940 · age 64 · b. ~1876 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01703-00172)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marion Ernest | 24 | Wife | — | Massachusetts |
| 2 | Marilyn Ernest | 1 | Daughter | 0 | Massachusetts |
| 3 | Mary B. Vincent THIS PERSON | 64 | Head | Stitcher | Portugal |
| 4 | Eugenia Vincent | 23 | Daughter | Nurse | Massachusetts |
| 5 | Bernardino Coppola | 45 | Head | Wood Finisher | Italy |
| 6 | Florence Coppola | 39 | Wife | Shaker | Massachusetts |
| 7 | Frances Coppola | 18 | Daughter | — | Massachusetts |
| 8 | Florlanda Coppola | 17 | Daughter | — | Massachusetts |
| 9 | Bernardino Coppola | 7 | Son | — | Massachusetts |
| 10 | Margaret Harper | 66 | Head | — | Canada-English |
| 11 | Mildred Harper | 30 | Daughter | — | Massachusetts |
| 12 | John C. Mcpherson | 31 | Nephew | Painter | Massachusetts |
| 13 | Hattie Hodgdon | 48 | Head | Supervisor | Rhode Island |
| 14 | Alice Louise Hodgdon | 28 | Daughter | Paste Stripper | Massachusetts |
| 15 | Lillian May Hodgdon | 21 | Daughter | Machine Operator | New Hampshire |
| 16 | F. Edward Hodgdon | 17 | Son | — | New Hampshire |
| 17 | Anna May | 71 | Mother | — | Canada-English |
| 18 | Robert Maguire | 49 | Head | Wire Commissioner | Massachusetts |
| 19 | Henrietta Maguire | 44 | Wife | — | Massachusetts |
| 20 | Robert F. Maguire | 18 | Son | — | California |
| 21 | Marjorie A. Maguire | 17 | Daughter | — | Massachusetts |
| 22 | Joseph T. Maguire | 13 | Son | — | Massachusetts |
| 23 | Mary H. Maguire | 12 | Daughter | — | Massachusetts |
| 24 | Raymond P. Severance | 26 | Lodger | Attendant | Massachusetts |
| 25 | Annie G. Welch | 75 | Head | — | Eire |
| 26 | Anna G. Welch | 39 | Daughter | Health Supervisor | Massachusetts |
| 27 | Mary Mullen | 23 | Niece | Typist | Eire |
| 28 | Margaret Canavan | 25 | Cousin | Clerk-Typist | Massachusetts |
| 29 | William Smith | 32 | Head | Painter | England |
| 30 | Margaret Smith | 30 | Wife | — | Canada-English |
| 31 | Phyllis Smith | 5 | Daughter | — | Massachusetts |
| 32 | Carol Smith | 2 | Daughter | — | Massachusetts |
| 33 | Elmer Hall | 48 | Head | Automobile Upholsterer | Maine |
| 34 | Mary Hall | 43 | Wife | — | Rhode Island |
| 35 | Mary Hall | 16 | Daughter | — | Massachusetts |
| 36 | Geraldine Hall | 13 | Daughter | — | Massachusetts |
| 37 | Doris Hall | 11 | Daughter | — | Massachusetts |
| 38 | Helena Hall | 8 | Daughter | — | Massachusetts |
| 39 | Irene Hall | 7 | Daughter | — | Massachusetts |
| 40 | Ellen J. Moriarty | 68 | Head | — | Eire |
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)