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Mary Marshall — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Marshall across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 9-person household.
Age 48
b. ~1892
Female
Spouse
Born: Rhode Island
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Marshall |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| 1935 Residence (City) | City of Newton |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Township / Ward | City Of Newton |
| Est. Birth Year | ~1892 |
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 |
|---|---|---|---|---|
| Margaret Marshall | Daughter | — | 8 | ~1932 |
| Elsie Marshall | Daughter | — | 10 | ~1930 |
| Charles Marshall | Head | — | 49 | ~1891 |
| Ernest Marshall | Son | — | 14 | ~1926 |
| George Marshall | Son | — | 18 | ~1922 |
| James Marshall | Son | — | 15 | ~1925 |
| Charles Marshall | Son | — | 16 | ~1924 |
| Clifford Marshall | Son | — | 19 | ~1921 |
| Mary Marshall | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Middlesex, Massachusetts
Spouse, age 27
Middlesex, Massachusetts · implied b. ~1893 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marshall |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Rhode Island |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1930
Middlesex, Massachusetts
Spouse, age 38
Middlesex, Massachusetts · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marshall |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| Age at First Marriage | 24 |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Rhode Island |
| Occupation | none |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Middlesex-County, Massachusetts
Spouse, age 48
Middlesex-County, Massachusetts · implied b. ~1892 — 9 household members
| Surname | Marshall |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| 1935 Residence (City) | City of Newton |
| 1935 Residence (County) | Middlesex |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
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 Marshall 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 Marshall
Spouse · 1940 · age 48 · b. ~1892 · 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
39 people indexed on this census page (nara:1940:m-t0627-01614-00630)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Salvatore Marnazzo | 21 | Son | New Worker | Mass |
| 42 | Antonio Marnazzo | 19 | Son | New Worker | Mass |
| 43 | Catherine Marnazzo | 17 | Daughter | — | Mass |
| 44 | John Lee | 27 | Head | Sheet Metal Worker | Mass |
| 45 | Dora Lee | 26 | Wife | Telephone Operator | Canada English |
| 46 | Eleanor Lee | 4 | Daughter | — | Mass |
| 47 | Joseph Casella | 34 | Head | Truck Driver Own | Mass |
| 48 | Mary Casella | 28 | Wife | — | Canada English |
| 49 | Julia Roche | 48 | Head | — | Eire |
| 50 | James Roche | 18 | Son | — | Mass |
| 51 | Joseph Mcmahon | 43 | Head | Laborer | Mass |
| 52 | Winifred Mcmahon | 43 | Wife | — | Eire |
| 53 | Thomas E. Shaughnessy | 35 | Head | Collector | Mass |
| 54 | Margaret Shaughnessy | 31 | Wife | Machine Op. Radio | Mass |
| 55 | Mary Shaughnessy | 12 | Daughter | — | Mass |
| 56 | Thomas Shaughnessy | 10 | Son | — | Mass |
| 57 | Charles Marshall | 49 | Head | Laborer | Canada English |
| 58 | Mary E. Marshall THIS PERSON | 48 | Wife | — | Rhode Island |
| 59 | Clifford Marshall | 19 | Son | Chauffeur | Mass |
| 60 | George Marshall | 18 | Son | Laborer | Rhode Island |
| 61 | Charles R. Marshall | 16 | Son | — | Mass |
| 62 | James T. Marshall | 15 | Son | — | Rhode Island |
| 63 | Ernest E. Marshall | 14 | Son | — | Rhode Island |
| 64 | Elsie Marshall | 10 | Daughter | — | Mass |
| 65 | Margaret Marshall | 8 | Daughter | — | Mass |
| 67 | John Kelly | 76 | Head | Gardner | Eire |
| 68 | Delia Kelly | 66 | Wife | — | Eire |
| 69 | Edward J. Kelly | 35 | Son | Collector | Mass |
| 70 | Hugh Cosgrove | 57 | Head | Gardner | Eire |
| 71 | Elizabeth Cosgrove | 61 | Wife | — | Eire |
| 72 | Hugh Cosgrove | 24 | Son | Belt-Hop | Mass |
| 73 | Mary Cosgrove | 23 | Daughter | Telephone Operator | Mass |
| 74 | Frank R. Law | 44 | Head | Supervisor | Mass |
| 75 | Agnes V. Law | 42 | Wife | — | Mass |
| 76 | Francis Law | 15 | Son | — | Mass |
| 77 | Donald Law | 12 | Son | — | Mass |
| 78 | Jean Ann Law | 8 | Daughter | — | Mass |
| 79 | William H. Cunningham | 59 | Head | Foreman | Mass |
| 80 | William E. Cunningham | 24 | Son | Radio Operator | 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)