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Mary Mason — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Mary Mason across the 1910, 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 5-person household.
Age 59
b. ~1881
Female
Head
Born: Connecticut
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Mason |
| Given Name | Mary L. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Widowed |
| Birthplace | Connecticut |
| 1935 Residence (City) | Southbridge |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
| Township / Ward | Southbridge |
| Est. Birth Year | ~1881 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Nina Walsh | Daughter | — | 29 | ~1911 |
| Lois Mason | Daughter | — | 22 | ~1918 |
| Mary Mason | Head | — | 59 | ~1881 |
| Vincent Walsh | Other | — | 25 | ~1915 |
| James Mason | Son | — | 26 | ~1914 |
Census Appearances
1910
Worcester, Massachusetts
Spouse, age 29
Worcester, Massachusetts · implied b. ~1881 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Connecticut |
| Years Married | 9 |
| Children Born | 4 |
| Children Living | 3 |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Connecticut |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1920
Worcester, Massachusetts
Spouse, age 38
Worcester, Massachusetts · implied b. ~1882 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Connecticut |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Connecticut |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1930
Worcester, Massachusetts
Head, age 48
Worcester, Massachusetts · implied b. ~1882 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Mary A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Widowed |
| Birthplace | Connecticut |
| Father's Birthplace | Connecticut |
| Mother's Birthplace | Connecticut |
| Occupation | none |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Radio Set | R |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1940
Worcester-County, Massachusetts
Head, age 59
Worcester-County, Massachusetts · implied b. ~1881 — 5 household members
| Surname | Mason |
| Given Name | Mary L. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Widowed |
| Birthplace | Connecticut |
| 1935 Residence (City) | Southbridge |
| 1935 Residence (County) | Worcester |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
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 Mason across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mason
Head · 1940 · age 59 · b. ~1881 · 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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01654-00160)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edmond Duguay | 37 | Head | Shaper | Canada French |
| 42 | Julia Duguay | 31 | Wife | — | Massachusetts |
| 43 | Beatrice Duguay | 5 | daughter | — | — |
| 44 | Cenita Duguay | 2 | daughter | — | — |
| 45 | Ernest Boissonneault | 29 | Lodger | Inspector | Massachusetts |
| 46 | Pauline Detnerska | 55 | Head | 0 | — |
| 47 | Michael Giacobbi | 60 | Head | 52 | — |
| 48 | Anthony Giacobbi | 32 | son | Pick Lenses | Italy |
| 49 | Eva Giacobbi | 19 | daughter-in-law | — | Massachusetts |
| 50 | Carmelia Giacobbi | 0 | granddaughter | — | — |
| 51 | Luigi Coccia | 48 | Head | Grinder | Italy |
| 52 | Clara Coccia | 40 | Wife | — | Italy |
| 53 | Renato Coccia | 18 | son | New Worker | Massachusetts |
| 54 | Helen Coccia | 16 | daughter | — | Massachusetts |
| 55 | Eugene Galipeau | 35 | Head | Shaper Lenses | Massachusetts |
| 56 | Alma Galipeau | 40 | Wife | Ex-Wind. | Canada French |
| 57 | Rene Galipeau | 12 | son | — | Massachusetts |
| 58 | Benjamin Weld | 76 | Head | — | Connecticut |
| 59 | Hattie Weld | 75 | Wife | — | Connecticut |
| 60 | Thomas Curlo | 59 | Head | Night Watchman | Irish Free |
| 61 | Delia B. Curlo | 59 | Wife | — | Irish Free |
| 62 | Thomas Curlo | 20 | son | Gen. Clerical Work | Massachusetts |
| 63 | Mary Ann Curlo | 18 | daughter | Distributing Work | Massachusetts |
| 64 | Thomas Mannis | 41 | Head | Description Binder | New Hampshire |
| 65 | Anna Mannis | 37 | Wife | — | New York |
| 66 | Phyllis Mannis | 14 | daughter | — | Massachusetts |
| 67 | Jean Mannis | 9 | daughter | — | Massachusetts |
| 68 | Patricia Mannis | 5 | daughter | — | — |
| 69 | Benoit Boissonneault | 36 | Head | Setting Up | Massachusetts |
| 70 | Anna Boissonneault | 37 | Wife | — | Massachusetts |
| 71 | Benoit Boissonneault | 11 | son | — | Massachusetts |
| 72 | June Ann Boissonneault | 9 | daughter | — | Massachusetts |
| 73 | Nancy Lou Boissonneault | 2 | daughter | — | — |
| 74 | Agnes Thompson | 64 | mother-in-law | — | Massachusetts |
| 75 | Mary L. Mason THIS PERSON | 59 | Head | — | Connecticut |
| 76 | James Mason | 26 | son | Truck Driver | Massachusetts |
| 77 | Lois Mason | 22 | daughter | Post Clerk | Massachusetts |
| 78 | Vincent Walsh | 25 | son-in-law | Gen. Office Work | Massachusetts |
| 79 | Nina Walsh | 29 | daughter | — | Massachusetts |
| 80 | Cancelled | 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)