Clarence Cook — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Clinton-County, Iowa

Our Model Tree links this Clarence Cook across the 1920, 1930 and 1940 US Censuses in Clinton-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 4-person household.

Age 46 b. ~1894 Male Head Born: Iowa Married

1940 Census Record Details

Census Year	1940
Location	Clinton-County, Iowa
Surname	Cook
Given Name	Clarence
Relationship to Head	Head
Sex	M
Color / Race	White
Age	46
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Clinton City
1935 Residence (County)	Clinton
Additional Details
Occupation	Electrician
Industry	Sugar Refinery
Class of Worker	PW
Hours Worked	40
Income (1939)	314
Highest Grade	No 8
1935 Residence	Same Place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa
Occupation	Electrician
Township / Ward	Clinton City
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.

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

Name	Relation to head	Relative to Clarence	Age	Birth yr
Abbie Cook	Other	—	84	~1856
Ellsworth Cook	Son	—	18	~1922
Clarence Cook	Head	—	46	~1894
Clara Cook	Spouse	—	47	~1893

Census Appearances

1920

Clinton, Iowa

Other, age 26

Clinton, Iowa · implied b. ~1894 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cook
Given Name	Clarence
Relationship to Head	Son-in-law
Sex	M
Color / Race	White
Age	26
Marital Status	Married
Birthplace	Iowa
Father's Birthplace	New York
Mother's Birthplace	Indiana
Occupation	Laborer
Industry	Sugar Refinery
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1930

Clinton, Iowa

Head, age 36

Clinton, Iowa · implied b. ~1894 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cook
Given Name	Clarence W
Relationship to Head	Head
Sex	M
Color / Race	White
Age	36
Marital Status	Married
Birthplace	Iowa
Age at First Marriage	21
Father's Birthplace	New York
Mother's Birthplace	Indiana
Occupation	Electrician
Industry	Sugar Refinery
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	4000
Radio Set	R
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

1940

Clinton-County, Iowa

Head, age 46

Clinton-County, Iowa · implied b. ~1894 — 4 household members

Surname	Cook
Given Name	Clarence
Relationship to Head	Head
Sex	M
Color / Race	White
Age	46
Marital Status	Married
Birthplace	Iowa
1935 Residence (City)	Clinton City
1935 Residence (County)	Clinton
Occupation	Electrician
Industry	Sugar Refinery
Class of Worker	PW
Hours Worked	40
Income (1939)	314
Highest Grade	No 8
1935 Residence	Same Place
Birth State	Iowa
Birth Country	United States
Birthplace (normalized)	iowa

Model Tree

Linked across censuses

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

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This person

Anchor record

Clarence Cook

Head · 1940 · age 46 · b. ~1894 · Iowa

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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 — Clinton-County, Iowa Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01150-00590)

Line	Name	Age	Relation	Occupation	Birthplace
1	Carl Smith	35	Head	Clerk	Iowa
2	Ernestine Smith	41	Wife	—	Iowa
3	Fred D. Dohrmann	42	Head	Trackman \| Truckman	Iowa
4	Cecelia Dohrmann	44	Wife	—	Iowa
5	Joseph Janiga	49	Head	Carpenter \| Joiner	Illinois
6	Helen Janiga	46	Wife	—	Illinois
7	Alvin Janiga	27	Son	Bookkeeper	Illinois
8	Robert Janiga	19	Son	—	Illinois
9	Ida A. Holdgrafer	58	Head	—	Wisconsin
10	August Bartlow	43	Head	Clerk	Iowa
11	Lucy Bartlow	47	Wife	—	Iowa
12	Maxine Bartlow	19	Daughter	Secretary	Iowa
13	Lois Bartlow	14	Daughter	—	Iowa
14	Clarence Cook THIS PERSON	46	Head	Electrician	Iowa
15	Clara Cook	47	Wife	—	Iowa
16	Ellsworth Cook	18	Son	—	Iowa
17	Abbie Cook	84	Mother	—	Indiana
18	Everett A. Hawkins	42	Head	Switchman	Illinois
19	Olga Hawkins	44	Wife	Cosmetologist	Iowa
20	Glenn A. Isenberg	20	Son	Machine Operator	Iowa
21	Shirley M. Isenberg	19	Daughter	Operator	Iowa
22	Loren A. Isenberg	12	Son	Paper Boy	Iowa
23	Walter D. Matson	49	Brother	Carpenter	Iowa
24	Charles John Johnson	52	Head	Proprietor	Iowa
25	Mable E. Johnson	51	Wife	—	Iowa
26	Elena Johnson	24	Daughter	Dental Assistant	Iowa
27	Warren Charles Johnson	17	Son	—	Iowa
28	—	None	—	—	—
29	Robert Mogg	59	Head	Engineer	Scotland
30	Isabell Mogg	59	Wife	—	Illinois
31	Joseph Schimins	33	Head	Laborer	Illinois
32	Esther Schimins	33	Wife	—	Illinois
33	Jean Schimins	12	Daughter	—	Iowa
34	Patricia Schimins	10	Daughter	—	Iowa
35	C. J. Morris	37	Head	Yard Clerk	Illinois
36	Helen Morris	35	Wife	—	Iowa
37	James R. Morris	11	Son	—	Iowa
38	Thomas O. Morris	5	Son	—	Iowa
39	Edward C. Morris	3	Son	—	Iowa
40	Harold Flack	43	Head	Station Tender	Iowa

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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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