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David Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this David Smith across the 1910, 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 3-person household.
Age 57
b. ~1883
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Smith |
| Given Name | David L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Natick |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Plumber |
| Industry | Contractor |
| Class of Worker | OA |
| Hours Worked | 32 |
| Income (1939) | 600 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Plumber |
| Township / Ward | Natick |
| Est. Birth Year | ~1883 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| Hilda Smith | Daughter | — | 29 | ~1911 |
| David Smith | Head | — | 57 | ~1883 |
| Betsy Smith | Spouse | — | 57 | ~1883 |
Census Appearances
1910
Suffolk, Massachusetts
Other, age 26
Suffolk, Massachusetts · implied b. ~1884 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | David S. |
| Relationship to Head | Servant |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1907 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Apprentice |
| Industry | Hotel |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1920
Suffolk, Massachusetts
Other, age 38
Suffolk, Massachusetts · implied b. ~1882 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | David |
| Relationship to Head | Son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1905 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Steamman |
| Industry | Commercial |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Middlesex, Massachusetts
Head, age 47
Middlesex, Massachusetts · implied b. ~1883 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 25 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Plumber |
| Industry | Jobbing |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Veteran | Yes |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Middlesex-County, Massachusetts
Head, age 57
Middlesex-County, Massachusetts · implied b. ~1883 — 3 household members
| Surname | Smith |
| Given Name | David L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Natick |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Occupation | Plumber |
| Industry | Contractor |
| Class of Worker | OA |
| Hours Worked | 32 |
| Income (1939) | 600 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 David Smith across 4 US Census years (1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
David Smith
Head · 1940 · age 57 · b. ~1883 · 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-t0627-01613-00900)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kathleen M Walsh | 35 | Wife | — | Eire |
| 2 | John G Jr Walsh | 7 | Son | — | Mass |
| 3 | Mary E Walsh | 5 | Daughter | — | Mass |
| 4 | Ellen T Walsh | 2 | Daughter | — | Mass |
| 5 | Jane E Oakes | 48 | Head | Teacher | Mass |
| 6 | Ellen M Oakes | 76 | Mother | — | Eire |
| 7 | Theodore J Lumpsey | 45 | Head | Shoe Worker | New Hampshire |
| 8 | Mary T Lumpsey | 40 | Wife | — | Mass |
| 9 | George E Lumpsey | 17 | Son | — | Mass |
| 10 | Archibald E Klein | 32 | Head | Truck Driver | Mass |
| 11 | Margaret A R Klein | 31 | Wife | — | Mass |
| 12 | Robert E Klein | 7 | Son | — | Mass |
| 13 | Michael H Hughes | 68 | Head | — | Eire |
| 14 | Mary F Hughes | 65 | Wife | — | Eire |
| 15 | Henry W Hughes | 38 | Son | Drug Clerk | Mass |
| 16 | Joseph W Hughes | 32 | Son | Office Clerk | Mass |
| 17 | Arthur L Hughes | 25 | Son | Drug Clerk | Mass |
| 19 | Joseph C Shenfele | 72 | Head | Laborer | Mass |
| 20 | Lena E Shenfele | 67 | Wife | — | Mass |
| 21 | Frank J Shenfele | 45 | Son | Foreman | Mass |
| 22 | Frank J Jr Shenfele | 13 | Grandson | — | Florida |
| 23 | Balthazar Krepps | 67 | Head | — | Germany |
| 24 | Barry E Cyphes | 55 | Head | Carpenter | Maine |
| 25 | Johanna Cyphes | 53 | Wife | Marker | Mass |
| 26 | Allan J Williams | 40 | Head | Manager | Mass |
| 27 | Hazel L Williams | 41 | Wife | — | Vermont |
| 28 | Allen J Jr Williams | 21 | Son | Retail Paint Store | Mass |
| 29 | Frank M Heinlein | 65 | Head | — | Mass |
| 30 | Mary E Q Heinlein | 60 | Wife | — | Mass |
| 31 | Martin J Heinlein | 40 | Son | Machinist | Mass |
| 32 | David L Smith THIS PERSON | 57 | Head | Plumber | Scotland |
| 33 | Betsy H Smith | 57 | Wife | — | Scotland |
| 34 | Hilda Smith | 29 | Daughter | Office Clerk | Mass |
| 35 | Napoleon Plouffe | 62 | Head | Elevator Operator | Mass |
| 36 | Margaret A A Plouffe | 65 | Wife | — | Mass |
| 37 | Lawrence A Plouffe | 29 | Son | Gardener | Mass |
| 38 | Mailland Wiltshire | 29 | Head | Dairyman | Vermont |
| 39 | Christiana L Wiltshire | 27 | Wife | — | Mass |
| 40 | Betty L Wiltshire | 6 | Daughter | — | 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)