JN
John Novak — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lake-County, Indiana
Our Model Tree links this John Novak across the 1930 and 1940 US Censuses in Lake-County, Indiana (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 11-person household.
Age 46
b. ~1894
Male
Head
Born: Poland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Indiana |
| Surname | Novak |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | East Chicago |
| 1935 Residence (County) | Lake |
| Naturalization Status | First papers filed |
| Additional Details | |
| Occupation | Laborer |
| Industry | Cement Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | 0 |
| 1935 Residence | Same place |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Occupation | Laborer |
| Township / Ward | East Chicago |
| Est. Birth Year | ~1894 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Walter Novak | Son | — | 18 | ~1922 |
| Virginia Novak | Daughter | — | 16 | ~1924 |
| Ann Novak | Spouse | — | 46 | ~1894 |
| Stanley Novak | Son | — | 11 | ~1929 |
| John Novak | Head | — | 46 | ~1894 |
| John Novak | Son | — | 21 | ~1919 |
| Eddie Novak | Son | — | 24 | ~1916 |
| Joe Novak | Son | — | 10 | ~1930 |
| Frankie Novak | Son | — | 7 | ~1933 |
| Edna Novak | Daughter | — | 14 | ~1926 |
| Lottie Novak | Daughter | — | 22 | ~1918 |
Census Appearances
1930
Lake, Indiana
Head, age 35
Lake, Indiana · implied b. ~1895 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Novak |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Alien |
| Year of Immigration | 1910 |
| Age at First Marriage | 25 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Bar Roller |
| Industry | Steel Inds |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Home Owned/Rented | R |
| Home Value / Rent | 1500 |
| Veteran | No |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1940
Lake-County, Indiana
Head, age 46
Lake-County, Indiana · implied b. ~1894 — 11 household members
| Surname | Novak |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | East Chicago |
| 1935 Residence (County) | Lake |
| Naturalization Status | First papers filed |
| Occupation | Laborer |
| Industry | Cement Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | 0 |
| 1935 Residence | Same place |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
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 Novak across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Novak
Head · 1940 · age 46 · b. ~1894 · Indiana
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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 — Lake-County, Indiana
Open full size
1940 US Federal Census — Lake-County, Indiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01065-00529)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gabriel Horvath | 61 | Head | Laborer | Hungary |
| 2 | Ledia Horvath | 56 | Wife | — | Hungary |
| 3 | Margie Horvath | 19 | Daughter | Clerk | Michigan |
| 4 | John Juhos | 13 | Nephew | — | Ohio |
| 5 | Julius Juhos | 12 | Nephew | — | Ohio |
| 6 | Mary Jane Juhos | 10 | Niece | — | Ohio |
| 7 | John Novak THIS PERSON | 46 | Head | Laborer | Poland |
| 8 | Ann Novak | 46 | Wife | — | Poland |
| 9 | Eddie Novak | 24 | Son | Clerk | Missouri |
| 10 | Lottie Novak | 22 | Daughter | Maid | Indiana |
| 11 | John Novak | 21 | Son | Laborer | Indiana |
| 12 | Walter Novak | 18 | Son | — | Indiana |
| 13 | Virginia Novak | 16 | Daughter | — | Indiana |
| 14 | Edna Novak | 14 | Daughter | — | Indiana |
| 15 | Stanley Novak | 11 | Son | — | Indiana |
| 16 | Joe Novak | 10 | Son | — | Indiana |
| 17 | Frankie Novak | 7 | Son | — | Indiana |
| 19 | Elijah Davis | 26 | Head | Laborer | Alabama |
| 20 | Anna Lou Davis | 24 | Wife | — | Alabama |
| 21 | Curly Jean Davis | 4 | Son | — | Indiana |
| 22 | Vivian Davis | 2 | Daughter | — | Indiana |
| 23 | Rosie Lee Davis | 18 | Sister | — | Alabama |
| 24 | Frank Poproski | 56 | Head | Laborer | Poland |
| 25 | Mike Milanovic | 32 | Son in law | Operator | Pennsylvania |
| 26 | Irene Milanovic | 26 | Daughter | — | Indiana |
| 27 | Michael Milanovic | 0 | Grandson | — | Indiana |
| 28 | Andrew Trunko | 40 | Head | Day-Man | Yugoslavia |
| 29 | Olga Trunko | 30 | Wife | — | Yugoslavia |
| 30 | Richard Trunko | 5 | Son | — | Indiana |
| 31 | Robert Trunko | 2 | Son | — | Indiana |
| 32 | John Majkowski | 67 | Head | Laborer | Poland |
| 33 | Mary Majkowski | 58 | Wife | — | Poland |
| 34 | Peter Majkowski | 35 | Son | — | Illinois |
| 35 | Walter Majkowski | 31 | Son | Laborer | Indiana |
| 36 | Genevia Majkowski | 23 | Daughter | House Work | Indiana |
| 37 | Chester Majkowski | 20 | Son | — | Indiana |
| 38 | Basil Barber | 33 | Head | Laborer | Mexico |
| 39 | Martha Barber | 32 | Wife | — | Illinois |
| 40 | Basil Barber | 7 | Son | — | Indiana |
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)