JL
John Lake — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Joseph-County, Michigan
Our Model Tree links this John Lake across the 1930 and 1940 US Censuses in St.-Joseph-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 3-person household.
Age 15
b. ~1925
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Joseph-County, Michigan |
| Surname | Lake |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Colon Village |
| 1935 Residence (County) | St. Joseph |
| Additional Details | |
| Occupation | Cutter |
| Industry | Textile Factory |
| Class of Worker | PW |
| Income (1939) | 85 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Cutter |
| Township / Ward | Colon Village |
| Est. Birth Year | ~1925 |
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 |
|---|---|---|---|---|
| Glenna Lake | Spouse | — | 51 | ~1889 |
| John Lake | Son | — | 15 | ~1925 |
| Ellis Lake | Head | — | 54 | ~1886 |
Census Appearances
1930
St Joseph, …
Son, age 5
St Joseph, Michigan · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lake |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
St.-Joseph-County, Michigan
Son, age 15
St.-Joseph-County, Michigan · implied b. ~1925 — 3 household members
| Surname | Lake |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Colon Village |
| 1935 Residence (County) | St. Joseph |
| Occupation | Cutter |
| Industry | Textile Factory |
| Class of Worker | PW |
| Income (1939) | 85 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 15 · b. ~1925 · Michigan
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — St.-Joseph-County, Michigan
Open full size
1940 US Federal Census — St.-Joseph-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01817-00058)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ellis A. Lake | 54 | Head | Salesman | Michigan |
| 2 | Glenna A. Lake | 51 | Wife | — | Michigan |
| 3 | John M. Lake THIS PERSON | 15 | Son | Cutter | Michigan |
| 4 | Marion S. Palmer | 76 | Head | Paper Boy | Michigan |
| 5 | Cora A. Palmer | 72 | Wife | — | Michigan |
| 6 | Hazel L. Moreland | 57 | Head | — | Michigan |
| 7 | Wallace D. Markham | 52 | Head | Operator | Michigan |
| 8 | Lulu Markham | 48 | Wife | — | Michigan |
| 9 | Charles W. Maurer | 57 | Head | Salesman | Ohio |
| 10 | Erl L. Maurer | 60 | Wife | — | Ohio |
| 11 | Barbara Jean Maurer | 20 | Daughter | Stenographer Office | Michigan |
| 12 | Ella D. Jackson | 78 | Head | — | Michigan |
| 13 | William B. Foulaw | 80 | Head | — | Michigan |
| 14 | Mary Foulaw | 81 | Wife | — | Michigan |
| 15 | Lloyd H. Knabe | 32 | Head | Proprietor Operator | Michigan |
| 16 | Laura M. Knabe | 36 | Wife | — | Michigan |
| 17 | Hugh L. Knabe | 5 | Son | — | Michigan |
| 18 | James M. Knabe | 2 | Son | — | Michigan |
| 19 | Mary Sturgis | 69 | Mother-in-law | — | Michigan |
| 20 | Oscar Hartman | 71 | Head | Proprietor | Michigan |
| 21 | Carrie E. Hartman | 61 | Wife | Clerk | Michigan |
| 22 | Katherine Lidke | 78 | Head | — | Michigan |
| 23 | Irene M. Lidke | 13 | Lodger | Sewing Machine | Michigan |
| 24 | Charles L. Calhoun | 33 | Head | Operator & Owner | Michigan |
| 25 | Mary D. Calhoun | 33 | Wife | — | Michigan |
| 26 | Carolyn A. Calhoun | 5 | Daughter | — | Michigan |
| 27 | Nancy A. Calhoun | 2 | Daughter | — | Michigan |
| 28 | Elizabeth Grace | 50 | Lodger | Doctor | Wisconsin |
| 29 | Harley Adams | 38 | Head | Proprietor | Michigan |
| 30 | Louise M. Adams | 34 | Wife | — | Michigan |
| 31 | Joan Ann Adams | 5 | Daughter | — | Michigan |
| 32 | Robert Van Deventer | 27 | Head | Proprietor | Michigan |
| 33 | Lucille D. Van Deventer | 25 | Wife | — | Michigan |
| 34 | Peggy J. Van Deventer | 5 | Daughter | — | Michigan |
| 35 | Charles L. Van Deventer | 12 | Son | — | Michigan |
| 36 | Earl L. La More | 46 | Head | Owner Actor | Ohio |
| 37 | Gene M. La More | 53 | Wife | Actor | Missouri |
| 38 | George L. Conklin | 43 | Head | Funeral Director | Michigan |
| 39 | Tessa M. Conklin | 40 | Wife | — | Michigan |
| 40 | Tessa M. Conklin | 15 | Daughter | — | Michigan |
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)