MD
Mabel Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mabel Davis across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 4-person household.
Age 50
b. ~1890
Female
Spouse
Born: Connecticut
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Davis |
| Given Name | Mabel B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Connecticut |
| 1935 Residence (City) | Waltham |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
| Township / Ward | Waltham |
| Est. Birth Year | ~1890 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mabel | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Davis | Daughter | — | 22 | ~1918 |
| Alice Davis | Daughter | — | 24 | ~1916 |
| Earl Davis | Head | — | 55 | ~1885 |
| Mabel Davis | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Middlesex, Massachusetts
Spouse, age 29
Middlesex, Massachusetts · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Mabel A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Connecticut |
| Father's Birthplace | Canada |
| Mother's Birthplace | Connecticut |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1930
Middlesex, Massachusetts
Other, age 40
Middlesex, Massachusetts · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Mable B |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Connecticut |
| Age at First Marriage | 20 |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Connecticut |
| Can Read/Write | Yes |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1940
Middlesex-County, Massachusetts
Spouse, age 50
Middlesex-County, Massachusetts · implied b. ~1890 — 4 household members
| Surname | Davis |
| Given Name | Mabel B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Connecticut |
| 1935 Residence (City) | Waltham |
| 1935 Residence (County) | Middlesex |
| Class of Worker | 0 |
| Highest Grade | Hs 4 |
| 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 Mabel Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mabel Davis
Spouse · 1940 · age 50 · b. ~1890 · 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-t0627-01619-00937)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Douglas Macarthur | 18 | Son | Clerk | Mass |
| 2 | George R. Macarthur | 17 | Son | — | Mass |
| 3 | Phyllis E. Macarthur | 15 | Daughter | — | Mass |
| 4 | Ernest H. Mclaughlin | 32 | Head | Carpenter | Mass |
| 5 | Lillian Mclaughlin | 24 | Wife | — | Mass |
| 6 | Ernest Jr. Mclaughlin | 4 | Son | — | Mass |
| 7 | Vernon Mclaughlin | 20 | Brother | — | Mass |
| 8 | Catherine Callahan | 33 | Head | — | Mass |
| 9 | William Callahan | 5 | Son | — | Mass |
| 10 | Alva Simpson | 47 | Head | Watch Maker | Canada |
| 11 | Donald Simpson | 8 | Son | — | Mass |
| 12 | Shirley Ettinger | 7 | Niece | — | Mass |
| 13 | Theodore Leblanc | 28 | Head | Bricklayer | Canada |
| 14 | Sadie P. Leblanc | 26 | Wife | — | Mass |
| 15 | Lorraine Leblanc | 2 | Daughter | — | Mass |
| 16 | George H. Ross | 27 | Head | Truck Driver | Barbados |
| 17 | Lillian D. Ross | 29 | Wife | — | New Hamp. |
| 18 | Arthur Berry | 27 | Head | Landscaper | Mass |
| 19 | Edith S. Berry | 26 | Wife | — | Mass |
| 20 | Catherine Nancy | 69 | Head | — | Mass |
| 21 | Walter Nancy | 19 | Son | — | Mass |
| 22 | Eileen Nancy | 16 | Daughter | — | Mass |
| 23 | Dorothy Nancy | 14 | Daughter | — | Mass |
| 24 | John B. Roche | 58 | Roomer | Laborer | Mass |
| 25 | Alice Berthelot | 31 | Head | — | Mass |
| 26 | Gertrude Rigoli | 25 | Sister | Fuse Worker | Mass |
| 27 | Elizabeth Rigoli | 4 | Daughter | — | Mass |
| 28 | Robert Gabriel | 15 | Brother | — | Mass |
| 29 | John F. Mcnally | 21 | Head | Timekeeper | Mass |
| 30 | Doris P. Mcnally | 23 | Wife | — | Mass |
| 31 | John R. Mcnally | 2 | Son | — | Mass |
| 32 | Earl E. Davis | 55 | Head | Toolmaker | Connecticut |
| 33 | Mabel B. Davis THIS PERSON | 50 | Wife | — | Connecticut |
| 34 | Alice J. Davis | 24 | Daughter | Clerk | Mass |
| 35 | Dorothy J. Davis | 22 | Daughter | Typist | Mass |
| 36 | Dawson Lawton | 33 | Head | Steel Stamper | Canada |
| 37 | Vina Lawton | 29 | Wife | — | Canada |
| 38 | Fred Cosman | 24 | Brother-in-law | — | Canada |
| 39 | Evangeline Cosman | 70 | Sister-in-law | — | Canada |
| 40 | George Ball | 73 | Head | Deceased | California |
Related Census Records
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)