MP
Mary Perry — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Perry across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 4-person household.
Age 44
b. ~1896
Female
Spouse
Born: Portugal
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Perry |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Portugal |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Stitcher |
| Industry | Coat Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 39 |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
| Occupation | Stitcher |
| Township / Ward | Cambridge |
| Est. Birth Year | ~1896 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Perry | Daughter | — | 21 | ~1919 |
| Joseph Perry | Head | — | 48 | ~1892 |
| Joseph Perry | Son | — | 11 | ~1929 |
| Mary Perry | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Bristol, Massachusetts
Spouse, age 24
Bristol, Massachusetts · implied b. ~1896 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Perry |
| Given Name | Maria |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Portugal |
| Year of Immigration | 1917 |
| Naturalization Status | Alien |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Ring Spinner |
| Industry | Cotton Mill |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1930
Part Of …
Spouse, age 34
Part Of Bristol, Massachusetts · implied b. ~1896 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Perry |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Portugal |
| Naturalization Status | Alien |
| Year of Immigration | 1916 |
| Age at First Marriage | 19 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Spinner |
| Industry | Cotton Mill |
| Class of Worker | W |
| Can Read/Write | No |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1940
Middlesex-County, Massachusetts
Spouse, age 44
Middlesex-County, Massachusetts · implied b. ~1896 — 4 household members
| Surname | Perry |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Portugal |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Alien |
| Occupation | Stitcher |
| Industry | Coat Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 39 |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| 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 Perry 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 Perry
Spouse · 1940 · age 44 · b. ~1896 · 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 — 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-t0627-01683-00250)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Janna | 25 | Head | Truck Driver | Massachusetts |
| 42 | Eva Janna | 25 | Wife | — | Massachusetts |
| 43 | Richard Janna | 5 | Son | — | Massachusetts |
| 44 | George Janna | 3 | Son | — | Massachusetts |
| 45 | Ellen Janna | 2 | Daughter | — | Massachusetts |
| 46 | Leo J. Spelman | 61 | Head | Laborer | Massachusetts |
| 47 | Mary Spelman | 59 | Wife | — | Massachusetts |
| 48 | Over-Estimated Number Of People | None | — | — | — |
| 49 | Over-Estimated Number Of People | None | — | — | — |
| 50 | Manuel Silva | 38 | Head | Finisher | Portugal |
| 51 | Belmira Silva | 36 | Wife | — | Portugal |
| 52 | Helen Silva | 13 | Daughter | — | Massachusetts |
| 53 | John Feeley | 29 | Head | Shipper | Massachusetts |
| 54 | Catherine Feeley | 28 | Wife | — | Massachusetts |
| 55 | John Feeley | 7 | Son | — | Massachusetts |
| 56 | Margaret Feeley | 3 | Daughter | — | Massachusetts |
| 57 | Lawrence Gomes | 23 | Head | — | Portugal |
| 58 | Celcelia Gomes | 39 | Daughter | — | Massachusetts |
| 59 | Rose Gomes | 24 | Granddaughter | Box Maker | Massachusetts |
| 60 | Jesse Costa | 29 | Head | Laborer | Massachusetts |
| 61 | Thelma Costa | 22 | Wife | — | Massachusetts |
| 62 | Margaret Costa | 4 | Daughter | — | Massachusetts |
| 63 | Jeanette Costa | 2 | Daughter | — | Massachusetts |
| 64 | Mary Ann Costa | 0 | Daughter | — | Massachusetts |
| 65 | Joseph Fernandes | 43 | Head | Finisher | Portugal |
| 66 | Mary Fernandes | 38 | Wife | — | Portugal |
| 67 | Durinda Fernandes | 12 | Daughter | — | Massachusetts |
| 68 | Howard S. Platt | 40 | Head | Truck Driver | Massachusetts |
| 69 | Gertrude T. Platt | 41 | Wife | — | Massachusetts |
| 70 | Walter J. Mccellan | 50 | In-law | — | Massachusetts |
| 71 | Eugene Fitzgerald | 28 | Head | Printer | Massachusetts |
| 72 | Dorothy Fitzgerald | 25 | Wife | — | Massachusetts |
| 73 | Eugene Fitzgerald | 4 | Son | — | Massachusetts |
| 74 | Robert Fitzgerald | 2 | Son | — | Massachusetts |
| 75 | Joseph Perry | 48 | Head | Carpenter | Portugal |
| 76 | Mary Perry THIS PERSON | 44 | Wife | Stitcher | Portugal |
| 77 | Mary Perry | 21 | Daughter | Packer | Massachusetts |
| 78 | Joseph Perry | 11 | Son | — | Massachusetts |
| 79 | Over-Estimated Number Of People | None | — | — | — |
| 80 | Over-Estimated Number Of People | None | — | — | — |
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)