JN
John Novak — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cuyahoga-County, Ohio
Our Model Tree links this John Novak across the 1920, 1930 and 1940 US Censuses in Cuyahoga-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 4-person household.
Age 48
b. ~1892
Male
Head
Born: Hungary
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | Novak |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Hungary |
| 1935 Residence (City) | Cleveland |
| 1935 Residence (County) | Cuyahoga |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | MACHINIST |
| Industry | iron works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
| Occupation | Machinist |
| Township / Ward | Cleveland |
| Est. Birth Year | ~1892 |
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 |
|---|---|---|---|---|
| Edward Novak | Son | — | 13 | ~1927 |
| John Novak | Head | — | 48 | ~1892 |
| Elizabeth Novak | Spouse | — | 39 | ~1901 |
| Marian Novak | Daughter | — | 17 | ~1923 |
Census Appearances
1920
Stark, Ohio
Other, age 28
Stark, Ohio · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Novak |
| Given Name | John |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Hungary |
| Year of Immigration | 1907 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | Machinist |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth Country | Hungary |
| Year of Naturalization | 1914 |
| Birthplace (normalized) | hungary |
1930
Cuyahoga, Ohio
Head, age 38
Cuyahoga, Ohio · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Novak |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Hungary |
| Naturalization Status | Naturalized |
| Year of Immigration | 1909 |
| Age at First Marriage | 24 |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | Machinist |
| Industry | Iron Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Magyar |
| Home Owned/Rented | R |
| Home Value / Rent | 28 |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
1940
Cuyahoga-County, Ohio
Head, age 48
Cuyahoga-County, Ohio · implied b. ~1892 — 4 household members
| Surname | Novak |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Hungary |
| 1935 Residence (City) | Cleveland |
| 1935 Residence (County) | Cuyahoga |
| Naturalization Status | Naturalized |
| Occupation | MACHINIST |
| Industry | iron works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
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 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
John Novak
Head · 1940 · age 48 · b. ~1892 · Ohio
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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 — Cuyahoga-County, Ohio
Open full size
1940 US Federal Census — Cuyahoga-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03232-00761)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Julius Hlavacs | 63 | Head | Jig Builder | Hungary |
| 2 | Barbara Hlavacs | 58 | Wife | — | Hungary |
| 3 | Marie Hlavacs | 34 | Daughter | — | Hungary |
| 4 | Julius A. Hlavacs | 28 | Son | Receiving Clerk | Ohio |
| 5 | Richard J. Hlavacs | 27 | Son | House Cleaner | Ohio |
| 6 | Joseph Sedlak | 50 | Head | Laborer | Hungary |
| 7 | Mary S. Sedlak | 48 | Wife | — | Hungary |
| 8 | Mary Sedlak | 26 | Daughter | Home Economy Teacher | Hungary |
| 9 | Joseph Sedlak | 18 | Son | Salesman | Ohio |
| 10 | Francis Sedlak | 12 | Daughter | — | Ohio |
| 11 | Leonard Hreitof | 23 | Head | Assembler | Ohio |
| 12 | Josephine B. Hreitof | 23 | Wife | Inspector | Ohio |
| 13 | William Volter | 20 | Head | Casemaker | Ohio |
| 14 | Elizabeth Volter | 20 | Wife | Multigrapher | Virginia |
| 15 | Frank Sr. Franko | 42 | Head | Machinist | Pennsylvania |
| 16 | Anna S. Franko | 41 | Wife | — | Hungary |
| 17 | Frank Jr. Franko | 19 | Son | Laborer | Hungary |
| 18 | Clara Franko | 12 | Daughter | — | Ohio |
| 19 | George Franko | 3 | Son | — | Ohio |
| 20 | Charles S. Birch | 42 | Head | Bricklayer | W. Virginia |
| 21 | Lillian Birch | 37 | Wife | — | Ohio |
| 22 | Doris Birch | 12 | Daughter | — | Ohio |
| 23 | Joseph Belovich | 48 | Head | Polisher | Hungary |
| 24 | Julia S. Belovich | 43 | Wife | — | Hungary |
| 25 | Helen Belovich | 18 | Daughter | — | Ohio |
| 26 | George Belovich | 14 | Son | — | Ohio |
| 27 | Marian Belovich | 6 | Daughter | — | Ohio |
| 28 | Andrew Sabodos | 25 | Head | Brick Layer | Ohio |
| 29 | Helen Sabodos | 23 | Wife | — | Michigan |
| 30 | Patricia Sabodos | 2 | Daughter | — | Ohio |
| 31 | Steve Maslanno | 25 | Brother-in-law | Laborer | Michigan |
| 32 | John S. Sedlak | 54 | Head | Laborer | Hungary |
| 33 | Katie Sedlak | 42 | Wife | — | Hungary |
| 34 | John Sedlak | 18 | Son | New Worker | Ohio |
| 35 | Magdalena Sedlak | 11 | Daughter | — | Ohio |
| 36 | William Sedlak | 5 | Son | — | Ohio |
| 37 | John R. Novak THIS PERSON | 48 | Head | Machinist | Hungary |
| 38 | Elizabeth Novak | 39 | Wife | — | Ohio |
| 39 | Marian Novak | 17 | Daughter | Seamstress | Ohio |
| 40 | Edward Novak | 13 | Son | — | Ohio |
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)