John Kern — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Rockland-County, New York

Our Model Tree links this John Kern across the 1930 and 1940 US Censuses in Rockland-County, New York (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 7-person household.

Age 46 b. ~1894 Male Head Born: New Jersey Married

1940 Census Record Details

Census Year	1940
Location	Rockland-County, New York
Surname	Kern
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	46
Marital Status	Married
Birthplace	New Jersey
1935 Residence (City)	Congers
1935 Residence (County)	Rockland
Additional Details
Occupation	tester
Industry	telephone co
Class of Worker	P W
Hours Worked	40
Income (1939)	3500
Highest Grade	H-4
1935 Residence	Same place
Birth State	New Jersey
Birth Country	United States
Birthplace (normalized)	new jersey
Occupation	Tester
Township / Ward	Congers
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.

7 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to John	Age	Birth yr
Virginia Kern	Daughter	—	18	~1922
Dorothy Kern	Daughter	—	12	~1928
George Kern	Son	—	7	~1933
Vera Kern	Daughter	—	20	~1920
John Kern	Head	—	46	~1894
Marie Kern	Spouse	—	43	~1897
Elaine Kern	Daughter	—	22	~1918

Census Appearances

1930

Rockland, New …

Head, age 36

Rockland, New York · implied b. ~1894 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Kern
Given Name	John G.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	36
Marital Status	Married
Birthplace	New Jersey
Age at First Marriage	23
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	Wire Chief
Industry	N. Y. Telephone
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	5,000
Radio Set	R
Veteran	No
Birth State	New Jersey
Birth Country	United States
Birthplace (normalized)	new jersey

1940

Rockland-County, New …

Head, age 46

Rockland-County, New York · implied b. ~1894 — 7 household members

Surname	Kern
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	46
Marital Status	Married
Birthplace	New Jersey
1935 Residence (City)	Congers
1935 Residence (County)	Rockland
Occupation	tester
Industry	telephone co
Class of Worker	P W
Hours Worked	40
Income (1939)	3500
Highest Grade	H-4
1935 Residence	Same place
Birth State	New Jersey
Birth Country	United States
Birthplace (normalized)	new jersey

Model Tree

Linked across censuses

Our Model Tree links John Kern across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

John Kern

Head · 1940 · age 46 · b. ~1894 · New York

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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 — Rockland-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02766-00206)

Line	Name	Age	Relation	Occupation	Birthplace
41	Amy Burke	24	wife	—	New York
42	John Burke	1	son	—	New York
43	Edgar D. Jolliffe	55	Head	Broker	New York
44	Harriet Jolliffe	45	wife	Teacher	New York
45	Edward Jansky	40	Head	Fireman	New York
46	Clara D. Jansky	39	wife	—	Switzerland
47	Marian Jansky	14	daughter	—	New York
48	Edward Jr. Jansky	11	son	—	New York
49	Frank Jansky	9	son	—	New York
50	Lawrence Whitehead	30	Head	Mechanic	New York
51	Isabel R. Whitehead	26	wife	—	New York
52	Lawrence R. Whitehead	2	son	—	New York
53	George Wohl	40	Head	Electrician	New York
54	Iona Wohl	79	mother	—	Norway
55	Emil M. Muller	44	Head	Mechanic	France
56	Louise Muller	44	wife	Riveter	France
57	Louise Muller	19	daughter	Labeler	New York
58	Marietta Muller	13	daughter	—	New York
59	Louise Gigoux	69	mother-in-law	—	France
60	George H. Smith	45	Head	Technician Electrician	Alaska
61	Lucille Smith	35	wife	Operator	France
62	Henry Smith	19	son	—	New York
63	John Thorp	33	Head	Engineer	Norway
64	Lawrence Thorp	27	wife	—	New Jersey
65	John Thorp	2	son	—	New York
66	Marie R. Thorp	0	daughter	—	New York
67	Floyd Spicer	56	Head	Laborer	New York
68	Pauline Spicer	37	sister	Attendant	New York
69	Russell Bender	23	Head	Attendant	New York
70	Ruth Bender	22	wife	—	Rhode Island
71	Ruth Ann Bender	1	daughter	—	New York
72	John Kern THIS PERSON	46	Head	Tester	New Jersey
73	Marie F. Kern	43	wife	—	New York
74	Elaine Kern	22	daughter	Attendant	New York
75	Vera Kern	20	daughter	Attendant	New York
76	Virginia (Alr) Kern	18	daughter	Student	New York
77	Dorothy Kern	12	daughter	—	New York
78	George Kern	7	son	—	New York
79	John Perdue	32	Head	Finisher	New York
80	Elizabeth Perdue	30	wife	—	New York

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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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