MP
Mary Perry — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Perry across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Manuel — first a daughter (b.~1870), then head of a 3-person household.
Age 70
b. ~1870
Female
Daughter
Born: Portugal
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Perry |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Single |
| Birthplace | Portugal |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | laborer |
| Industry | cord factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 750 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
| Occupation | Laborer |
| Township / Ward | Boston City |
| Est. Birth Year | ~1870 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Perry | Daughter | — | 70 | ~1870 |
| Natalie Perry | Daughter | — | 24 | ~1916 |
| Manuel Perry | Head | — | 80 | ~1860 |
Census Appearances
1920
Middlesex, Massachusetts
Other, age 50
Middlesex, Massachusetts · implied b. ~1870 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Perry |
| Given Name | Mary |
| Relationship to Head | Mother-in-law |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| Year of Immigration | 1915 |
| Naturalization Status | Alien |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1930
Middlesex, Massachusetts
Other, age 61
Middlesex, Massachusetts · implied b. ~1869 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Perry |
| Given Name | Mary |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| Naturalization Status | Naturalized |
| Year of Immigration | 1921 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read/Write | No |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1940
Suffolk-County, Massachusetts
Daughter, age 70
Suffolk-County, Massachusetts · implied b. ~1870 — 3 household members
| Surname | Perry |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Single |
| Birthplace | Portugal |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Alien |
| Occupation | laborer |
| Industry | cord factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 750 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| 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 2 locations, using XGBoost record linkage. Identified parents: father Manuel Perry (~0.60 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.6
Father
Manuel Perry
b. ~1860
Source father
● Household
· direct · ~0.6
This person
Anchor record
Mary Perry
Daughter · 1940 · age 70 · b. ~1870 · Massachusetts
★ You are viewing this record
Sibling
Natalie Perry
Sibling · 1940 · age 24
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-t0627-01658-00027)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dolores Digregorio | 2 | daughter | — | Massachusetts |
| 2 | Domenic Miglio | 45 | Head | Laborer | Italy |
| 3 | Raffaella Miglio | 45 | Wife | — | Italy |
| 4 | Carmella Miglio | 12 | daughter | — | Massachusetts |
| 5 | Anthony Miglio | 15 | son | — | Massachusetts |
| 6 | Gaetano Miglio | 13 | son | — | Massachusetts |
| 7 | Connie Miglio | 7 | daughter | — | Massachusetts |
| 8 | Giustino Di Bucci | 46 | Head | Laborer | Italy |
| 9 | Lucy Di Bucci | 39 | Wife | — | Massachusetts |
| 10 | Rocco Di Bucci | 16 | son | — | Massachusetts |
| 11 | Raffaella Di Bucci | 15 | daughter | — | Massachusetts |
| 12 | Anna Di Bucci | 12 | daughter | — | Massachusetts |
| 13 | Angelo Molinello | 75 | Lodger | — | Italy |
| 14 | Nicholas Esposito | 29 | Head | Helper | Italy |
| 15 | Anna Esposito | 29 | Wife | — | Italy |
| 16 | Jeanette Esposito | 3 | daughter | — | Massachusetts |
| 17 | Jennie Camuso | 66 | mother-in-law | — | Italy |
| 18 | Antonio Bonfomba | 51 | Head | Shoemaker | Italy |
| 19 | Assunta Bonfomba | 44 | Wife | — | Italy |
| 20 | Martin Bonfomba | 23 | son | Laborer | Italy |
| 21 | Lena Bonfomba | 19 | daughter | — | Massachusetts |
| 22 | Mary Bonfomba | 11 | daughter | — | Massachusetts |
| 23 | Celia Bonfomba | 9 | daughter | — | Massachusetts |
| 24 | Carmella Bonfomba | 7 | daughter | — | Massachusetts |
| 25 | Gene Bonfomba | 3 | son | — | Massachusetts |
| 26 | John Bozzi | 32 | Head | Salesman | Massachusetts |
| 27 | Rose Bozzi | 28 | Wife | — | Massachusetts |
| 28 | Gertrude Bozzi | 10 | daughter | — | Massachusetts |
| 29 | John Bozzi | 8 | son | — | Massachusetts |
| 30 | Adeline Bozzi | 4 | daughter | — | Massachusetts |
| 31 | Frederick Johnson | 55 | Head | Laborer | Maine |
| 32 | Brother Winthrop | None | M | Ship Dockers | — |
| 33 | Luigi Staffieri | 49 | Head | — | Italy |
| 34 | Philomena Staffieri | 21 | daughter | Saleswoman | Massachusetts |
| 35 | Yolanda Staffieri | 19 | daughter | Laborer | Massachusetts |
| 36 | Dominic Staffieri | 16 | son | — | Massachusetts |
| 37 | Michael Staffieri | 9 | son | — | Massachusetts |
| 38 | Manuel Perry | 80 | Head | — | Portugal |
| 39 | Mary Perry THIS PERSON | 70 | daughter | Laborer | Portugal |
| 40 | Natalie Perry | 24 | daughter | Laborer | Massachusetts |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 1 parents
~0.6
Max depth 4 (1900–1950 window)
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)