MW
Mary Walsh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Walsh across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1906), then head of a 8-person household.
Age 34
b. ~1906
Female
Spouse
Born: Rhode Island
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Walsh |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Newton |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Township / Ward | Newton |
| Est. Birth Year | ~1906 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Doris Walsh | Daughter | — | 11 | ~1929 |
| Mildred Walsh | Daughter | — | 8 | ~1932 |
| Martin Walsh | Head | — | 36 | ~1904 |
| George Walsh | Son | — | 6 | ~1934 |
| Merrill Walsh | Son | — | 9 | ~1931 |
| Leo Walsh | Son | — | 10 | ~1930 |
| Harry Walsh | Son | — | 4 | ~1936 |
| Mary Walsh | Spouse | — | 34 | ~1906 |
Census Appearances
1930
Middlesex, Massachusetts
Other, age 24
Middlesex, Massachusetts · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | Mary C. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| Age at First Marriage | 22 |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Rhode Island |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Middlesex-County, Massachusetts
Spouse, age 34
Middlesex-County, Massachusetts · implied b. ~1906 — 8 household members
| Surname | Walsh |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Newton |
| 1935 Residence (County) | Middlesex |
| Highest Grade | No 7 |
| 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 Walsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Walsh
Spouse · 1940 · age 34 · b. ~1906 · 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-t0627-01614-00768)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Brenda R. Haywood | 2 | Daughter | — | Mass |
| 42 | Nellie G. White | 67 | Mother in law | — | Conn |
| 43 | Rochelle Rogers | 15 | Lodger | — | S. Carolina |
| 44 | Clemen F. Joyal | 39 | Head | Pressman | Mass |
| 45 | Josephine F. Joyal | 34 | Wife | — | Mass |
| 46 | Clement J. Joyal | 7 | Son | — | Mass |
| 47 | Betty A. Joyal | 3 | Daughter | — | Mass |
| 48 | Patricia Joyal | 2 | Daughter | — | Mass |
| 49 | John J. Higgins | 41 | Head | Mechanic - Driver | Vermont |
| 50 | Rosanna M. Higgins | 31 | Wife | — | Mass |
| 51 | Dorothy Higgins | 17 | Daughter | — | Mass |
| 52 | Eleanor Higgins | 15 | Daughter | — | Mass |
| 53 | Robert Higgins | 13 | Son | — | Mass |
| 54 | Paul Higgins | 11 | Son | — | Mass |
| 55 | Jean Higgins | 9 | Daughter | — | Mass |
| 56 | Richard Higgins | 7 | Son | — | Mass |
| 57 | Martin Walsh | 36 | Head | Gardner | Canada-English |
| 58 | Mary Walsh THIS PERSON | 34 | Wife | — | Rhode Island |
| 59 | Doris Walsh | 11 | Daughter | — | Mass |
| 60 | Leo Walsh | 10 | Son | — | Mass |
| 61 | Merrill Walsh | 9 | Son | — | Mass |
| 62 | Mildred Walsh | 8 | Daughter | — | Mass |
| 63 | George Walsh | 6 | Son | — | Mass |
| 64 | Harry Walsh | 4 | Son | — | Mass |
| 65 | John J. Rev. Crane | 67 | Head | Clergyman | Mass |
| 66 | James Rev. Daly | 49 | Curate | Clergyman | Mass |
| 67 | Thomas Rev. Boland | 49 | Curate | Clergyman | Mass |
| 68 | John Rev. Ryan | 31 | Curate | Clergyman | Mass |
| 69 | Margaret J. Wiley | 55 | Housekeeper | Housekeeper | Eire |
| 70 | Anna Carroll | 37 | Housekeeper | Housekeeper | Eire |
| 71 | William J. Burns | 37 | Head | Tree Climber | Mass |
| 72 | Mary Burns | 31 | Wife | — | Mass |
| 73 | Margaret Burns | 15 | Daughter | — | Mass |
| 74 | Marion Burns | 13 | Daughter | — | Mass |
| 75 | William Burns | 12 | Son | — | Mass |
| 76 | Thomas Shelia | 58 | Head | Carpenter | Canada-French |
| 77 | Anna Shelia | 56 | Wife | — | Mass |
| 78 | Edgar J. Shelia | 24 | Son | Salesman | Mass |
| 79 | Estella Mawn | 31 | Lodger | Cutter | Mass |
| 80 | Benjamin Monaghan | 54 | Head | Night 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)