JL
John Lake — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Lake across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 3-person household.
Age 45
b. ~1895
Male
Head
Born: Newfoundland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Lake |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | carpenter |
| Industry | contractor |
| Class of Worker | PW |
| Hours Worked | 9 |
| Income (1939) | 775 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
| Occupation | Carpenter |
| Township / Ward | Boston City |
| Est. Birth Year | ~1895 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Patrick Lake | Son | — | 18 | ~1922 |
| Mary Lake | Spouse | — | 42 | ~1898 |
| John Lake | Head | — | 45 | ~1895 |
Census Appearances
1930
Suffolk, Massachusetts
Head, age 39
Suffolk, Massachusetts · implied b. ~1891 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lake |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1923 |
| Age at First Marriage | 20 |
| Father's Birthplace | Newfoundland |
| Mother's Birthplace | Newfoundland |
| Occupation | Carpenter |
| Industry | Car Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 19 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
1940
Suffolk-County, Massachusetts
Head, age 45
Suffolk-County, Massachusetts · implied b. ~1895 — 3 household members
| Surname | Lake |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Newfoundland |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Naturalization Status | Naturalized |
| Occupation | carpenter |
| Industry | contractor |
| Class of Worker | PW |
| Hours Worked | 9 |
| Income (1939) | 775 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | newfoundland |
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 John Lake across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Lake
Head · 1940 · age 45 · b. ~1895 · 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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01659-00409)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Giannetto | 51 | Head | Laborer | Italy |
| 2 | Dominic Giannetto | 25 | Son | Laborer | Mass |
| 3 | Carmelo Anglo | 62 | Head | Pipe Fitter | Italy |
| 4 | Josephine Anglo | 36 | Wife | — | Italy |
| 5 | Jenny Anglo | 18 | Daughter | Maker | Mass |
| 6 | Carmelo Anglo | 16 | Daughter | — | Mass |
| 7 | James Tunney | 29 | Head | Watchman | Mass |
| 8 | Ruth Tunney | 30 | Wife | — | Mass |
| 9 | John Tunney | 8 | Son | — | Mass |
| 10 | Annmary Tunney | 7 | Daughter | — | Mass |
| 11 | Clara Tunney | 5 | Daughter | — | Mass |
| 12 | Richard Tunney | 4 | Son | — | Mass |
| 13 | Ruth Tunney | 2 | Daughter | — | Mass |
| 14 | Edward Tunney | 23 | Brother | Elevator Operator | Mass |
| 15 | Rita Tunney | 20 | Sister | — | Mass |
| 16 | Nicholas Welch | 32 | Head | Alcohol Tax Agent | Maine |
| 17 | John Welch | 33 | Brother | Fireman | Maine |
| 18 | Michael Welch | 30 | Brother | Draw Tender | Massachusetts |
| 19 | William Welch | 23 | Brother | — | Massachusetts |
| 20 | John Lake THIS PERSON | 45 | Head | Carpenter | Newfoundland |
| 21 | Mary Lake | 42 | Wife | Cleaning | Newfoundland |
| 22 | Patrick Lake | 18 | Son | Mess. Worker | Newfoundland |
| 23 | Mary Scanlan | 53 | Head | — | Northern Ireland |
| 24 | Joseph Scanlan | 34 | Son | Waiter | Mass |
| 25 | Florence Scanlan | 24 | Daughter | Clerk | Mass |
| 26 | Edward Calnowski | 19 | Son | Baker | Mass |
| 27 | Gertrude Calnowski | 20 | Daughter | — | Mass |
| 28 | Thomas V. Calnowski | 0 | Grandson | — | Mass |
| 29 | Joseph Mennone | 45 | Head | Laborer | Italy |
| 30 | Catherine Mennone | 42 | Wife | — | Italy |
| 31 | Alice Wincinzi | 21 | Daughter | Bookkeeper | Mass |
| 32 | John Wincinzi | 17 | Son | Mess. Worker | Mass |
| 33 | Thomas Buckley | 59 | Friend | — | Eire |
| 34 | Julia Buckley | 59 | Wife | — | England |
| 35 | Patrick Gallagher | 75 | Head | — | Ireland |
| 36 | Catherine Pelton | 41 | Head | — | Mass |
| 37 | Arthur Pelton | 17 | Son | — | Mass |
| 38 | Ruth Pelton | 13 | Daughter | — | Mass |
| 39 | Thomas Yorrick | 35 | Head | Waiter | Mass |
| 40 | Ann Yorrick | 5 | 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)