John Novak — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this John Novak across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1902), then head of a 4-person household.

Age 38 b. ~1902 Male Head Born: Austria Married

1940 Census Record Details

Census Year	1940
Location	Cook-County, Illinois
Surname	Novak
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Austria
1935 Residence (City)	Chicago City
1935 Residence (County)	Cook
Naturalization Status	Naturalized
Additional Details
Occupation	Truck Driver
Industry	Cereal Plant
Class of Worker	PW
Hours Worked	48
Income (1939)	2200
Highest Grade	No 8
1935 Residence	Same Place
Birth Country	Austria
Birthplace (normalized)	austria
Occupation	Truck Driver
Township / Ward	Chicago City
Est. Birth Year	~1902

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
Dorothy Novak	Spouse	—	40	~1900
Darleen Novak	Daughter	—	18	~1922
John Novak	Head	—	38	~1902
Bernard Novak	Son	—	15	~1925

Census Appearances

1920

Allegheny, Pennsylvania

Other, age 21

Allegheny, Pennsylvania · implied b. ~1899 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Novak
Given Name	John
Relationship to Head	Boarder
Sex	M
Color / Race	White
Age	21
Marital Status	Single
Birthplace	Austria
Year of Immigration	1912
Naturalization Status	First papers filed
Father's Birthplace	Austria
Mother's Birthplace	Austria
Occupation	Laborer
Industry	Steel Works
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Slovak
Birth Country	Austria
Birthplace (normalized)	austria

1930

Cook, Illinois

Other, age 32

Cook, Illinois · implied b. ~1898 — 50 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Novak
Given Name	John
Relationship to Head	Lodger
Sex	M
Color / Race	White
Age	32
Marital Status	Single
Birthplace	Austria
Naturalization Status	Naturalized
Year of Immigration	1913
Father's Birthplace	Austria
Mother's Birthplace	Austria
Occupation	Laborer
Industry	Building
Class of Worker	W
Can Read/Write	Yes
Mother Tongue	German
Veteran	Yes
Birth Country	Austria
Birthplace (normalized)	austria

1940

Cook-County, Illinois

Head, age 38

Cook-County, Illinois · implied b. ~1902 — 4 household members

Surname	Novak
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Austria
1935 Residence (City)	Chicago City
1935 Residence (County)	Cook
Naturalization Status	Naturalized
Occupation	Truck Driver
Industry	Cereal Plant
Class of Worker	PW
Hours Worked	48
Income (1939)	2200
Highest Grade	No 8
1935 Residence	Same Place
Birth Country	Austria
Birthplace (normalized)	austria

Model Tree

Linked across censuses

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 38 · b. ~1902 · Illinois

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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 — Cook-County, Illinois Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00938-01034)

Line	Name	Age	Relation	Occupation	Birthplace
1	Aline Bonshire	39	Wife	—	Indiana
2	Jack Bonshire	18	Son	—	Indiana
3	Robert Bonshire	15	Son	—	Indiana
4	William Bonshire	15	Son	—	Indiana
5	De\|Dau\|Dan Kessler	39	Head	Conductor	Indiana
6	Ruth Kessler	34	Wife	—	Indiana
7	De\|Dau\|Dan Jr Kessler	15	Son	—	Illinois
8	Hunter William Kessler	71	Father	—	Pennsylvania
9	Andrew Erickson	48	Head	Mechanic	Sweden
10	Elsie Erickson	47	Wife	—	Sweden
11	Maurice Erickson	9	Son	—	Illinois
12	Michael Dudich	48	Head	Repairman	Hungary
13	Elizabeth Dudich	47	Wife	—	Hungary
14	Elizabeth Dudich	13	Daughter	Soda Clerk	Illinois
15	John Novak THIS PERSON	38	Head	Truck Driver	Austria
16	Dorothy Novak	40	Wife	—	Nebraska
17	Darleen Novak	18	Daughter	Clerk	Nebraska
18	Bernard Novak	15	Son	—	Nebraska
19	Eva B Nonneman	39	Head	Recreational Leader	Illinois
20	Nord Albert Nonneman	74	Father	—	Sweden
21	Lawrence Nonneman	41	Brother	Laborer	Illinois
22	Strand Mathilda Nonneman	75	Aunt	—	Sweden
23	Harry Zich	42	Head	Crane Operator	Illinois
24	Minnie Zich	39	Wife	—	Wisconsin
25	Edith Zich	18	Daughter	—	Illinois
26	Harriet Zich	16	Daughter	—	Illinois
27	George Zich	15	Son	—	Illinois
28	Mahneke Carleton Zich	26	Step-Son	Laborer	Wisconsin
29	Archie Brown	41	Head	Carpenter	Ireland
30	Ann Brown	41	Wife	—	Scotland
31	Robert Brown	10	Son	—	Illinois
32	Henry Brown	8	Son	—	Illinois
33	Jane Ann Brown	1	Daughter	—	Illinois
34	William Johnson	68	Head	Laborer	Georgia
35	Lucille Johnson	63	Wife	—	Mississippi
36	Alexander Mcinerney	75	Head	—	Empire State
37	Mary F. Mcinerney	71	Wife	—	English Canada
38	Alexander Mcinerney	30	Son	Electrical Engineer	Illinois
39	Margaret Mcinerney	28	Daughter-in-law	—	Illinois
40	Jack G. Mcinerney	4	Grandson	—	Illinois

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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)

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