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Ethel Cook — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Lake-County, Indiana

Our Model Tree links this Ethel Cook across the 1930 and 1940 US Censuses in Lake-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 9-person household.

Age 12 b. ~1928 Female Daughter Born: Indiana Single

1940 Census Record Details

Census Year1940
LocationLake-County, Indiana
SurnameCook
Given NameEthel
Relationship to HeadDaughter
SexF
Color / RaceBlack
Age12
Marital StatusSingle
BirthplaceIndiana
1935 Residence (City)Gary City
1935 Residence (County)Lake
Additional Details
Highest GradeNo 4
1935 ResidenceSame place
Birth StateIndiana
Birth CountryUnited States
Birthplace (normalized)indiana
Township / WardGary City
Est. Birth Year~1928

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.

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

Name Relation to head Relative to Ethel Age Birth yr
Mary Cook Spouse — 30 ~1910
David Cook Son — 8 ~1932
Ethel Cook Daughter — 12 ~1928
Lindsey Cook Head — 43 ~1897
Dolores Cook Daughter — 5 ~1935
Lindsey Cook Son — 10 ~1930
Rose Cook Daughter — 13 ~1927
John Cook Son — 1 ~1939
Marva Cook Daughter — 2 ~1938

Census Appearances

1930
Lake, Indiana
Daughter, age 2
Lake, Indiana · implied b. ~1928 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Cooke
Given Name Ethel L.
Relationship to Head Daughter
Sex F
Color / Race Black
Age 2
Marital Status Single
Birthplace Indiana
Father's Birthplace Alabama
Mother's Birthplace Oklahoma
Birth State Indiana
Birth Country United States
Birthplace (normalized) indiana
1940
Lake-County, Indiana
Daughter, age 12
Lake-County, Indiana · implied b. ~1928 — 9 household members
Surname Cook
Given Name Ethel
Relationship to Head Daughter
Sex F
Color / Race Black
Age 12
Marital Status Single
Birthplace Indiana
1935 Residence (City) Gary City
1935 Residence (County) Lake
Highest Grade No 4
1935 Residence Same place
Birth State Indiana
Birth Country United States
Birthplace (normalized) indiana

Model Tree

An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Linked across censuses
Our Model Tree links Ethel Cook across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ethel Cook
Daughter · 1940 · age 12 · b. ~1928 · Indiana
★ You are viewing this record
Sibling
John Cook
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dolores Cook
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lindsey Cook
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Cook
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Cook
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marva Cook
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Lake-County, Indiana Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01121-00098)

Line Name Age Relation Occupation Birthplace
41 Henry Clay 40 Head Truck Driver Alabama
42 Lillie Clay 40 Wife — Mississippi
43 Henry Porter 40 Head Painter Kentucky
44 Ethel Porter 28 Wife — Kentucky
45 Isaac Bromzick 68 Head — Arkansas
46 Maggie Bromzick 57 Wife — Arkansas
47 Huston Colman 32 Head Mason Laborer Mississippi
48 Sarah Colman 30 Wife — Mississippi
49 Huston Colman 7 Son — Mississippi
50 Bonnie Ruth Colman 5 Daughter — Indiana
51 Nathaniel Colman 3 Son — Indiana
52 Earl Coleman 37 Head Laborer Illinois
53 Evelyn Coleman 27 Wife — Tennessee
54 Morton Coleman 31 Brother Laborer Illinois
55 Edward Johnson 28 Head Laborer Mississippi
56 Brunette Johnson 20 Wife — Arkansas
57 Dozier Thomas Allen 38 Head Gasoline Dealer Alabama
58 Mattie Allen 38 Wife — Alabama
59 Dozier, Jr. Allen 9 Son — Indiana
60 Sanford Allen 8 Son — Indiana
61 Paris Allen 7 Son — Indiana
62 William Allen 4 Son — Indiana
63 Lindsey Cook 43 Head Laborer Alabama
64 Mary Cook 30 Wife — Oklahoma
65 Rose Cook 13 Daughter — Indiana
66 Ethel Cook THIS PERSON 12 Daughter — Indiana
67 Lindsey Jr. Cook 10 Son — Indiana
68 David Cook 8 Son — Indiana
69 Dolores Cook 5 Daughter — Indiana
70 Marva Cook 2 Daughter — Indiana
71 John Cook 1 Son — Indiana
72 Pollie Wilbur 42 Head — Mississippi
73 Samuel Adams 47 Lodger Switchman Texas
74 Allie Lacefield 43 Head Laborer Illinois
75 Malicie Lacefield 38 Wife — Illinois
76 Ocie Lacefield 19 Daughter — Illinois
77 Pauline Lacefield 16 Daughter — Indiana
78 Dorsie Lacefield 15 Daughter — Illinois
79 Ardie Lacefield 13 Son — Illinois
80 Louise Lacefield 11 Daughter — 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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