JL
John Lake — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-County, Minnesota
Our Model Tree links this John Lake across the 1930 and 1940 US Censuses in St.-Louis-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1907), then head of a 4-person household.
Age 33
b. ~1907
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Minnesota |
| Surname | Lake |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Town of White |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Occupation | Manager |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 90 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Manager |
| Township / Ward | Town Of White |
| Est. Birth Year | ~1907 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Frank Lake | Son | — | 29 | ~1911 |
| Vivian Lake | Other | — | 28 | ~1912 |
| John Lake | Son | — | 33 | ~1907 |
| Almon Lake | Head | — | 65 | ~1875 |
Census Appearances
1930
St Louis, …
Son, age 23
St Louis, Minnesota · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lake |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
St.-Louis-County, Minnesota
Son, age 33
St.-Louis-County, Minnesota · implied b. ~1907 — 4 household members
| Surname | Lake |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Town of White |
| 1935 Residence (County) | St. Louis |
| Occupation | Manager |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 90 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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
Son · 1940 · age 33 · b. ~1907 · Minnesota
★ You are viewing this record
Sibling
Frank Lake
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — St.-Louis-County, Minnesota
Open full size
1940 US Federal Census — St.-Louis-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01957-00814)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Kari | 45 | Head | Laborer | Finland |
| 42 | Mayme Kari | 30 | Wife | — | Minnesota |
| 43 | Helga V. Kari | 13 | Daughter | — | Minnesota |
| 44 | Vera M. Kari | 3 | Daughter | — | Minnesota |
| 45 | Mary K. Kari | 63 | Mother | — | Finland |
| 46 | Elias A. Maki | 40 | Head | Laborer | Minnesota |
| 47 | Raymond A. Maki | 11 | Son | — | Minnesota |
| 48 | John E. Maki | 38 | Partner | Laborer | Minnesota |
| 49 | John Lantinen | 48 | Head | Laborer | Finland |
| 50 | Tyne E. Lantinen | 39 | Wife | — | Finland |
| 51 | Cabella V. Lantinen | 13 | Daughter | — | Minnesota |
| 52 | John C. F. Kangas | 36 | Head | Laborer | Minnesota |
| 53 | Sadie E. Kangas | 37 | Wife | — | Minnesota |
| 54 | John F. Jr. Kangas | 8 | Son | — | Minnesota |
| 55 | Anna Lintula | 73 | Mother-in-law | — | Finland |
| 56 | Lauri J. Jalkanen | 46 | Head | Carpenter | Finland |
| 57 | Sigrid Jalkanen | 46 | Wife | — | Finland |
| 58 | Nestor Niemi | 49 | Head | Farm Manager | Finland |
| 59 | Martha E. Niemi | 41 | Wife | — | Finland |
| 60 | Oscar T. Niemi | 17 | Son | New Worker | Minnesota |
| 61 | Vivian H. Niemi | 6 | Daughter | — | Minnesota |
| 62 | Almon Lake | 65 | Head | — | Finland |
| 63 | John Jr. Lake THIS PERSON | 33 | Son | Manager | Minnesota |
| 64 | Frank E. Lake | 29 | Son | Truck Driver | Minnesota |
| 65 | Vivian Lake | 28 | Daughter-in-law | — | Minnesota |
| 66 | John Hemming | 56 | Head | Laborer | Finland |
| 67 | Mike Oijala | 55 | Head | Laborer | Finland |
| 68 | Lauri Jalkanen | 55 | Lodger | — | Finland |
| 69 | Matt Vaisila | 60 | Head | — | Finland |
| 70 | Fred Korpela | 44 | Head | — | Finland |
| 71 | Abraham Maunu | 50 | Head | Laborer | Finland |
| 72 | Alex Harju | 67 | Head | — | Finland |
| 73 | Victor Hieti | 58 | Head | Laborer | Finland |
| 74 | Jacob Holmstrom | 54 | Head | Manager | Finland |
| 75 | Edna Holmstrom | 54 | Wife | — | Finland |
| 76 | Herman Kaivola | 74 | Head | — | Finland |
| 77 | Mary Kaivola | 67 | Wife | — | Finland |
| 78 | Uno J. Engman | 36 | Head | Laborer | Massachusetts |
| 79 | Helen S. Engman | 28 | Wife | — | Minnesota |
| 80 | Susan M. Tuuri | 63 | Head | — | Finland |
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)