JL
John Lake — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this John Lake across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Head
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Lake |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | Salesman |
| Industry | Butcher Shop |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1664 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Salesman |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1913 |
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 |
|---|---|---|---|---|
| John Lake | Head | — | 27 | ~1913 |
| John Lake | Son | — | 2 | ~1938 |
| Robert Lake | Son | — | 1 | ~1939 |
| Gertrude Lake | Spouse | — | 25 | ~1915 |
Census Appearances
1930
Hudson, New …
Son, age 16
Hudson, New Jersey · implied b. ~1914 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Luko |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Czechoslovakia |
| Mother's Birthplace | Czechoslovakia |
| Occupation | Laborer |
| Industry | Laundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Head, age 27
Hudson-County, New Jersey · implied b. ~1913 — 4 household members
| Surname | Lake |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Occupation | Salesman |
| Industry | Butcher Shop |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1664 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 27 · b. ~1913 · New Jersey
★ 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 — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02404-00061)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joan Brady | 10 | Daughter | — | New York |
| 2 | Anthony Brady | 5 | Son | — | New York |
| 3 | Robert Brady | 2 | Son | — | New York |
| 4 | Jacob Haber | 43 | Head | Delivery Man | Poland |
| 5 | Anne Haber | 19 | Daughter | New Worker | New Jersey |
| 6 | Rose Haber | 17 | Daughter | — | New Jersey |
| 7 | Alan Haber | 11 | Son | — | New Jersey |
| 8 | William Haber | 2 | Son | — | New Jersey |
| 9 | Leonard Kruger | 34 | Lodger | Instructor | New Jersey |
| 10 | Nell Cavanaugh | 52 | Head | Seamstress | Pennsylvania |
| 11 | Marie Cavanaugh | 16 | Daughter | Clerk | Pennsylvania |
| 12 | James Cunningham | 66 | Head | Longshoreman | New York |
| 13 | Anna Cunningham | 65 | Wife | — | Northern Ireland |
| 14 | John Lake THIS PERSON | 27 | Head | Salesman | New Jersey |
| 15 | Gertrude Lake | 25 | Wife | — | New Jersey |
| 16 | John Lake | 2 | Son | — | New Jersey |
| 17 | Robert Lake | 1 | Son | — | New Jersey |
| 18 | Thomas Hughes | 66 | Head | — | Eire |
| 19 | Anne Hughes | 69 | Wife | — | Eire |
| 20 | Edward Powers | 33 | Head | Inspector | New York |
| 21 | Helen Powers | 29 | Wife | — | Connecticut |
| 22 | Robert Carr | 26 | Head | Ass'T Element | Kentucky |
| 23 | Rose Carr | 26 | Wife | Clerk | New Jersey |
| 24 | Raymond Durkin | 49 | Head | Salesman | New York |
| 25 | Mary F. Durkin | 43 | Wife | — | New Jersey |
| 26 | Rosemary Van Doren | 11 | Niece | — | New Jersey |
| 27 | Sidney Mickel | 79 | Head | — | New Jersey |
| 28 | Lester S. Mickel | 46 | Son | Printer | New Jersey |
| 29 | Harry Lewis | 66 | Head | Conductor | New Jersey |
| 30 | Ruth Wallace | 22 | Grand-Daughter | — | Michigan |
| 31 | Ethel Wallace | 20 | Grand-Daughter | Nurse | New Jersey |
| 32 | Dorothy Wallace | 18 | Grand-Daughter | — | New Jersey |
| 33 | Jean Wallace | 17 | Grand-Daughter | — | Michigan |
| 34 | Harry C. Harrington | 47 | Head | Broker | Delaware |
| 35 | Gertrude Harrington | 40 | Wife | — | New Jersey |
| 36 | Harry Harrington | 8 | Son | — | New Jersey |
| 37 | Gertrude Harrington | 7 | Daughter | — | New Jersey |
| 38 | Lorenz Young | 44 | Head | Pharmacist | New Jersey |
| 39 | Isabelle Young | 36 | Wife | — | New Jersey |
| 40 | Barbara Young | 11 | Daughter | — | New Jersey |
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)