MP
Mary Peters — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Peters across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 3-person household.
Age 64
b. ~1876
Female
Head
Born: Portugal
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Peters |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| 1935 Residence (City) | Framingham |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Alien |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
| Township / Ward | Framingham |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mildred Peters | Daughter | — | 32 | ~1908 |
| Mary Peters | Head | — | 64 | ~1876 |
| William Peters | Son | — | 29 | ~1911 |
Census Appearances
1920
Middlesex, Massachusetts
Spouse, age 44
Middlesex, Massachusetts · implied b. ~1876 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peters |
| Given Name | Melinda |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Portugal |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1930
Middlesex, Massachusetts
Spouse, age 54
Middlesex, Massachusetts · implied b. ~1876 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peters |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Portugal |
| Naturalization Status | Alien |
| Year of Immigration | 1881 |
| Age at First Marriage | 17 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read/Write | Yes |
| Mother Tongue | Portuguese |
| Birth Country | Portugal |
| Birthplace (normalized) | portugal |
1940
Middlesex-County, Massachusetts
Head, age 64
Middlesex-County, Massachusetts · implied b. ~1876 — 3 household members
| Surname | Peters |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Portugal |
| 1935 Residence (City) | Framingham |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Alien |
| Highest Grade | 8 |
| 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 Peters across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Peters
Head · 1940 · age 64 · b. ~1876 · 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-t0627-01606-00498)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John A. Lordi | 15 | Son | — | Some Place |
| 42 | William L. Nelson | 64 | Head | Chemist | Canada |
| 43 | Lena Nelson | 62 | Wife | — | Canada |
| 44 | William Jr. Nelson | 16 | Son | — | Mass |
| 45 | Samuel T. Briggs | 46 | Head | Janitor | Mass |
| 46 | Julia F. Briggs | 50 | Wife | — | Mass |
| 47 | James H. Briggs | 22 | Son | Bundler | Mass |
| 48 | Arlene Briggs | 20 | Daughter | Bookkeeper | Mass |
| 49 | Russell D. Grant | 42 | Head | Salesman | Mass |
| 50 | Myrtle E. Grant | 39 | Wife | — | Conn. |
| 51 | James W. Grant | 13 | Son | — | Mass |
| 52 | Beverly Grant | 7 | Daughter | — | Mass |
| 53 | W. H. Meserve | 54 | Head | — | Arizona |
| 54 | John T. O'Malley | 60 | Head | Printer | Mass |
| 55 | Mary F. O'Malley | 60 | Wife | — | Mass |
| 56 | John J. O'Malley | 38 | Son | Clerk | Mass |
| 57 | Richard L. Williams | 72 | Head | Conductor | Mass |
| 58 | Ada M. Williams | 72 | Wife | — | Mass |
| 59 | Kenneth Williams | 30 | Son | Postal Clerk | Mass |
| 60 | George H. Chase | 79 | Head | — | Mass |
| 61 | Henry Chase | 50 | Son | Bar Tender | Mass |
| 62 | Florence A. Chase | 38 | Daughter | Stenographer | Mass |
| 63 | Elizabeth S. Chase | 42 | Daughter | Clerk | Mass |
| 64 | Will Chase | 21 | Son | — | Mass |
| 65 | Daniel J. O'Connor | 47 | Head | Plumber | Mass |
| 66 | Dora C. O'Connor | 47 | Wife | Sales Woman | Mass |
| 67 | Katherine L. O'Connor | 18 | Daughter | Clerk | Mass |
| 68 | Eleanor F. O'Connor | 17 | Daughter | — | Mass |
| 69 | Daniel J. Jr. O'Connor | 15 | Son | — | Mass |
| 70 | Katherine E. O'Connor | 76 | Mother | — | Mass |
| 71 | Benjamin F. Glidden | 63 | Head | Finisher | Conn. |
| 72 | Harriet A. Glidden | 62 | Wife | — | Mass |
| 73 | Mary J. Wielstra | 62 | Head | Registered | Mass |
| 74 | Harold L. Childs | 47 | Head | Printer | Mass |
| 75 | Florence Childs | 42 | Wife | — | Conn. |
| 76 | Fred Childs | 21 | Son | Tester In Lab. | Mass |
| 77 | Thelma Childs | 20 | Daughter | Clerk | Mass |
| 78 | Mary Peters THIS PERSON | 64 | Head | — | Portugal |
| 79 | Mildred Peters | 32 | Daughter | Stitcher | Mass |
| 80 | William Peters | 29 | Son | Usher | 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)