Fred Cook — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · St.-Clair-County, Michigan

Our Model Tree links this Fred Cook across the 1920, 1930 and 1940 US Censuses in St.-Clair-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1897), then head of a 4-person household.

Age 43 b. ~1897 Male Head Born: Michigan Married

1940 Census Record Details

Census Year	1940
Location	St.-Clair-County, Michigan
Surname	Cook
Given Name	Fred
Relationship to Head	Head
Sex	M
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Michigan
1935 Residence (City)	Mussey Twp.
1935 Residence (County)	St Clair
Additional Details
Occupation	Farmer
Industry	Farming
Class of Worker	OA
Hours Worked	60
Income (1939)	0
Highest Grade	H-4
1935 Residence	Same Place
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan
Occupation	Farmer
Township / Ward	Mussey Twp
Est. Birth Year	~1897

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 Fred	Age	Birth yr
Wilbur Cook	Son	—	15	~1925
Hazel Cook	Spouse	—	45	~1895
Fred Cook	Head	—	43	~1897
Francis Appley	Other	—	43	~1897

Census Appearances

1920

St Clair, …

Son, age 21

St Clair, Michigan · implied b. ~1899

● Primary link · ~Confirmed · 1 source

XGBoost

Surname	Cook
Given Name	Fred U
Relationship to Head	Son
Sex	M
Color / Race	White
Age	21
Marital Status	Single
Birthplace	Michigan
Father's Birthplace	Michigan
Mother's Birthplace	Michigan
Occupation	Farmer
Industry	Home farm
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1930

St Clair, …

Head, age 32

St Clair, Michigan · implied b. ~1898 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cook
Given Name	Fred
Relationship to Head	head
Sex	M
Color / Race	White
Age	32
Marital Status	Married
Birthplace	Michigan
Age at First Marriage	25
Father's Birthplace	Michigan
Mother's Birthplace	Michigan
Occupation	Farmer
Industry	General farm
Class of Worker	VVVV O
Can Read/Write	Yes
Home Owned/Rented	R
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1940

St.-Clair-County, Michigan

Head, age 43

St.-Clair-County, Michigan · implied b. ~1897 — 4 household members

Surname	Cook
Given Name	Fred
Relationship to Head	Head
Sex	M
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Michigan
1935 Residence (City)	Mussey Twp.
1935 Residence (County)	St Clair
Occupation	Farmer
Industry	Farming
Class of Worker	OA
Hours Worked	60
Income (1939)	0
Highest Grade	H-4
1935 Residence	Same Place
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

Model Tree

Linked across censuses

Our Model Tree links Fred 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

Fred Cook

Head · 1940 · age 43 · b. ~1897 · Michigan

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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 — St.-Clair-County, Michigan Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01815-00842)

Line	Name	Age	Relation	Occupation	Birthplace
41	Ruth Friedsberg	19	Daughter	Np	Michigan
42	Allan Friedsberg	16	Son	Np	Michigan
43	Arthur Friedsberg	16	Son	Np	Michigan
44	Gloria Friedsberg	15	Daughter	Np	Michigan
45	Jean Friedsberg	13	Daughter	—	Michigan
46	June Friedsberg	9	Daughter	—	Michigan
47	Robert Friedsberg	6	Son	—	Michigan
48	Paul Yarblow	43	Head	Farmer	Michigan
49	Albert Schoneman	59	Head	Farmer	Michigan
50	Edward Schoneman	57	Brother	Farmer	Michigan
51	Benjamin Blank	40	Head	Farmer	Michigan
52	Margie Blank	35	Wife	Np	Michigan
53	Bernard Blank	15	Son	Np	Michigan
54	Neil Blank	14	Son	Np	Michigan
55	Evelyn Blank	13	Daughter	—	Michigan
56	Audrey Blank	11	Daughter	—	Michigan
57	Harry Giroux	45	Head	Farmer	Michigan
58	Clara Giroux	43	Wife	Np	Michigan
59	Leland Giroux	21	Son	Laborer	Michigan
60	Virginia Giroux	19	Daughter	Seamstress	Michigan
61	Elthon Giroux	17	Son	Laborer	Michigan
62	Harry Jr. Giroux	15	Son	Np	Michigan
63	Alfred Schoneman	39	Head	Farmer	Michigan
64	Margaret Schoneman	32	Wife	Np	Michigan
65	Russell Schoneman	9	Son	—	Michigan
66	Marvin Schoneman	7	Son	—	Michigan
67	Valentine Kowalski	55	Head	Steel Worker	Poland
68	Josephine Kowalski	55	Wife	Np	Poland
69	Edward Kowalski	21	Son	Laborer	Michigan
70	Casimir Kowalski	16	Son	Np	Michigan
71	Fred Cook THIS PERSON	43	Head	Farmer	Michigan
72	Hazel Cook	45	Wife	Np	Michigan
73	Wilbur Cook	15	Son	Np	Michigan
74	Francis Appley	43	Lodger	Laborer	Michigan
75	Ellis Toech	38	Head	Farmer	Michigan
76	Marie Toech	36	Wife	Np	Michigan
77	Sam Schimmelpfenig	52	Head	Farmer	Michigan
78	Mabel Schimmelpfenig	44	Wife	Np	Michigan
79	Roy Schimmelpfenig	15	Son	Np	Michigan
80	Frederick Schimmelpfenig	13	Son	—	Michigan

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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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