John Clark — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cassia-County, Idaho

Our Model Tree links this John Clark across the 1920, 1930 and 1940 US Censuses in Cassia-County, Idaho (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 5-person household.

Age 53 b. ~1887 Male Head Born: Idaho Married

1940 Census Record Details

Census Year	1940
Location	Cassia-County, Idaho
Surname	Clark
Given Name	John C.
Relationship to Head	head
Sex	M
Color / Race	White
Age	53
Marital Status	Married
Birthplace	Idaho
1935 Residence (City)	Oakley Village
1935 Residence (County)	Cassia
Additional Details
Occupation	salesman
Industry	Nursery Company
Class of Worker	PW
Hours Worked	48
Income (1939)	600
Highest Grade	H 3
1935 Residence	Same house
Birth State	Idaho
Birth Country	United States
Birthplace (normalized)	idaho
Occupation	Salesman
Township / Ward	Oakley Village
Est. Birth Year	~1887

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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Joyce Clark	Daughter	—	11	~1929
John Clark	Head	—	53	~1887
Russel Clark	Son	—	20	~1920
Orville Clark	Son	—	30	~1910
Sarah Clark	Spouse	—	52	~1888

Census Appearances

1920

Cassia, Idaho

Head, age 31

Cassia, Idaho · implied b. ~1889 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Clark
Given Name	John C.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	31
Marital Status	Married
Birthplace	Idaho
Father's Birthplace	Utah
Mother's Birthplace	Utah
Occupation	Manager
Industry	Grain Elevator
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Home Owned/Rented	F
Birth State	Idaho
Birth Country	United States
Year of Naturalization	O
Birthplace (normalized)	idaho

1930

Cassia, Idaho

Head, age 43

Cassia, Idaho · implied b. ~1887 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Clark
Given Name	John O
Relationship to Head	head
Sex	M
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Idaho
Age at First Marriage	19
Father's Birthplace	Utah
Mother's Birthplace	Utah
Occupation	Salesman
Industry	grocery
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	No
Home Value / Rent	R
Radio Set	5.00
Birth State	Idaho
Birth Country	United States
Birthplace (normalized)	idaho

1940

Cassia-County, Idaho

Head, age 53

Cassia-County, Idaho · implied b. ~1887 — 5 household members

Surname	Clark
Given Name	John C.
Relationship to Head	head
Sex	M
Color / Race	White
Age	53
Marital Status	Married
Birthplace	Idaho
1935 Residence (City)	Oakley Village
1935 Residence (County)	Cassia
Occupation	salesman
Industry	Nursery Company
Class of Worker	PW
Hours Worked	48
Income (1939)	600
Highest Grade	H 3
1935 Residence	Same house
Birth State	Idaho
Birth Country	United States
Birthplace (normalized)	idaho

Model Tree

Linked across censuses

Our Model Tree links John Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

John Clark

Head · 1940 · age 53 · b. ~1887 · Idaho

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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 — Cassia-County, Idaho Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00744-00451)

Line	Name	Age	Relation	Occupation	Birthplace
1	Wanda Mcquerry	17	daughter	—	Idaho
2	Glen Mcquerry	14	son	—	Idaho
3	Nels Peterson	56	head	Salesman	Sweden
4	Alice Peterson	54	wife	—	Utah
5	Vern Peterson	28	son	Salesman	Idaho
6	John J. Millard	84	head	—	Utah
7	Elizabeth Mcmurry	76	head	—	Idaho
8	Hasting Mcmurry	38	son	Laborer	Utah
9	Mary Jane Babbitt	53	head	—	Utah
10	Wilbur Babbitt	24	son	Farm Laborer	Idaho
11	Chester Babbitt	21	son	Farm Laborer	Idaho
12	Beth Babbitt	16	daughter	—	Idaho
13	Reuben C. Mcqueen	65	head	Laborer	Iowa
14	Della M. Mcqueen	54	wife	—	Idaho
15	Jack Mcqueen	18	son	—	Idaho
16	Alta Jean Mcqueen	16	daughter	—	Idaho
17	Fredric Cox	35	head	Laborer	Canada
18	Ada Cox	33	wife	—	Idaho
19	Nadeen Cox	3	daughter	—	Idaho
20	George Sharp	35	head	Pipelayer	Idaho
21	Myrtle Sharp	33	wife	—	Utah
22	Inez Sharp	13	daughter	—	Idaho
23	George Jr. Sharp	11	son	—	Idaho
24	Dorothy Sharp	9	daughter	—	Idaho
25	Rex Sharp	7	son	—	Idaho
26	Donald Sharp	4	son	—	Idaho
27	George Butler	48	head	Foreman	Utah
28	Illa Butler	45	wife	—	Idaho
29	Lorene Butler	20	daughter	—	Idaho
30	Vernell Butler	15	daughter	—	Idaho
31	John C. Clark THIS PERSON	53	head	Salesman	Idaho
32	Sarah P. Clark	52	wife	—	Idaho
33	Orville Clark	30	son	Laborer	Idaho
34	Russel Clark	20	son	New Worker	Idaho
35	Joyce Clark	11	daughter	—	Idaho
36	Donald E. Mcevers	31	head	Manager	Idaho
37	Delora Mcevers	24	wife	Clerk	Idaho
38	Donald Dean Mcevers	4	son	—	Idaho
39	Ellsworth Adams	29	head	Laborer	Idaho
40	Merzell Adams	23	wife	—	Idaho

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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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