JN
John Novak — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lucas-County, Ohio
Our Model Tree links this John Novak across the 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 10-person household.
Age 16
b. ~1924
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Ohio |
| Surname | Novak |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | TOLEDO |
| 1935 Residence (County) | LUCAS |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Toledo |
| Est. Birth Year | ~1924 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Novak | Son | — | 16 | ~1924 |
| Mary Novak | Spouse | — | 45 | ~1895 |
| Margaret Novak | Daughter | — | 19 | ~1921 |
| Larry Novak | Son | — | 4 | ~1936 |
| Agnes Novak | Daughter | — | 23 | ~1917 |
| Frances Novak | Daughter | — | 14 | ~1926 |
| John Novak | Head | — | 51 | ~1889 |
| Arthur Novak | Son | — | 6 | ~1934 |
| Rita Novak | Daughter | — | 12 | ~1928 |
| Betty Novak | Daughter | — | 27 | ~1913 |
Census Appearances
1930
Lucas, Ohio
Son, age 7
Lucas, Ohio · implied b. ~1923 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Novak |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Czechoslovakia |
| Mother's Birthplace | Czechoslovakia |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lucas-County, Ohio
Son, age 16
Lucas-County, Ohio · implied b. ~1924 — 10 household members
| Surname | Novak |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | TOLEDO |
| 1935 Residence (County) | LUCAS |
| Class of Worker | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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
Son · 1940 · age 16 · b. ~1924 · Ohio
★ You are viewing this record
Sibling
Betty Novak
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Novak
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Larry Novak
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Novak
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Novak
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Novak
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Novak
Sibling · 1940 · age 23
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 — Lucas-County, Ohio
Open full size
1940 US Federal Census — Lucas-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03266-00692)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Nagy | 54 | Head | — | Slovakia |
| 42 | Joseph Nagy | 34 | Son | Laborer | Ohio |
| 43 | George Nagy | 24 | Son | New Worker | Ohio |
| 44 | Dorothy Nagy | 14 | Daughter | — | Ohio |
| 45 | Mick Fabos | 63 | Head | Laborer | Hungary |
| 46 | Apolonia Fabos | 52 | Wife | — | Hungary |
| 47 | John Fabos | 15 | Son | — | Ohio |
| 48 | Steve Simon | 65 | Lodger | — | Hungary |
| 49 | Joseph Demko | 61 | Head | — | Hungary |
| 50 | Mary Demko | 57 | Wife | — | Hungary |
| 51 | Mary Demko | 28 | Daughter | Operator | Ohio |
| 52 | Julius Demko | 20 | Son | New Worker | Ohio |
| 53 | John Gadus | 57 | Head | Boiler Maker | Slovakia |
| 54 | Theresa Gadus | 51 | Wife | Laundress | Slovakia |
| 55 | Cecial Gadus | 18 | Daughter | Maid | Ohio |
| 56 | Lenord Gadus | 12 | Son | — | Ohio |
| 57 | Steven Horvath | 37 | Head | Truck Driver | Ohio |
| 58 | Emma Horvath | 36 | Wife | — | Connecticut |
| 59 | Stevan Horvath | 16 | Son | — | Ohio |
| 60 | Frank Horvath | 14 | Son | — | Ohio |
| 61 | Margaret Horvath | 13 | Daughter | — | Ohio |
| 62 | Frank Balas | 30 | Head | Glass Maker | Ohio |
| 63 | Rose Balas | 27 | Wife | — | Ohio |
| 64 | Francis Balas | 2 | Son | — | Ohio |
| 65 | Ernest Balas | 0 | Son | — | Ohio |
| 66 | Alex Csizek | 32 | Head | Rigger | Ohio |
| 67 | Catherine Csizek | 30 | Wife | — | Ohio |
| 68 | Mary C. Csizek | 11 | Daughter | — | Ohio |
| 69 | Theodore Csizek | 5 | Son | — | Ohio |
| 70 | John Novak | 51 | Head | Rigger | Hungary |
| 71 | Mary Novak | 45 | Wife | — | Hungary |
| 72 | Betty Novak | 27 | Daughter | Inspector | Ohio |
| 73 | Agnes Novak | 23 | Daughter | Maid | Ohio |
| 74 | Margaret Novak | 19 | Daughter | Maid | Ohio |
| 75 | John Novak THIS PERSON | 16 | Son | — | Ohio |
| 76 | Frances Novak | 14 | Daughter | — | Ohio |
| 77 | Rita Novak | 12 | Daughter | — | Ohio |
| 78 | Arthur Novak | 6 | Son | — | Ohio |
| 79 | Larry Novak | 4 | Son | — | Ohio |
| 80 | Stanley Olejniczak | 34 | Head | Laborer | 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)