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Earl Cook — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Jefferson-County, Alabama

Our Model Tree links this Earl Cook across the 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 6-person household.

Age 22 b. ~1918 Male Son Born: Alabama Single

1940 Census Record Details

Census Year1940
LocationJefferson-County, Alabama
SurnameCook
Given NameEarl
Relationship to HeadSon
SexM
Color / RaceBlack
Age22
Marital StatusSingle
BirthplaceAlabama
1935 Residence (City)Tenn. Coal, Iron & R.R. Camp
1935 Residence (County)Jefferson
Additional Details
OccupationLaborer
IndustryBlast Furnace
Class of WorkerPW
Hours Worked40
Income (1939)650
Highest GradeHs 4
1935 ResidenceSame place
Birth StateAlabama
Birth CountryUnited States
Birthplace (normalized)alabama
OccupationLaborer
Township / WardTenn Coal Iron Rr Camp
Est. Birth Year~1918

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.

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

Name Relation to head Relative to Earl Age Birth yr
Thelma Cook Daughter — 16 ~1924
Avery Cook Head — 54 ~1886
Rosa Threats Daughter — 26 ~1914
Flora Cook Daughter — 18 ~1922
Earl Cook Son — 22 ~1918
Rubye Cook Daughter — 13 ~1927

Census Appearances

1930
Jefferson, Alabama
Son, age 12
Jefferson, Alabama · implied b. ~1918 — 7 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Cook
Given Name Earl
Relationship to Head Son
Sex M
Color / Race Black
Age 12
Marital Status Single
Birthplace Alabama
Father's Birthplace Alabama
Mother's Birthplace Alabama
Can Read/Write Yes
Birth State Alabama
Birth Country United States
Birthplace (normalized) alabama
1940
Jefferson-County, Alabama
Son, age 22
Jefferson-County, Alabama · implied b. ~1918 — 6 household members
Surname Cook
Given Name Earl
Relationship to Head Son
Sex M
Color / Race Black
Age 22
Marital Status Single
Birthplace Alabama
1935 Residence (City) Tenn. Coal, Iron & R.R. Camp
1935 Residence (County) Jefferson
Occupation Laborer
Industry Blast Furnace
Class of Worker PW
Hours Worked 40
Income (1939) 650
Highest Grade Hs 4
1935 Residence Same place
Birth State Alabama
Birth Country United States
Birthplace (normalized) alabama

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 Earl Cook across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Earl Cook
Son · 1940 · age 22 · b. ~1918 · Alabama
★ You are viewing this record
Sibling
Rosa Threats
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Flora Cook
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rubye Cook
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Cook
Sibling · 1940 · age 16
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 — Jefferson-County, Alabama Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00046-00570)

Line Name Age Relation Occupation Birthplace
1 Avery Cook 54 Head Rail Hemmer Alabama
2 Earl Cook THIS PERSON 22 Son Laborer Alabama
3 Flora Cook 18 Daughter — Georgia
4 Thelma Cook 16 Daughter — Alabama
5 Rubye Cook 13 Daughter — Alabama
6 Rosa Threats 26 Daughter — Alabama
7 William H. Wallace 62 Head Brick Mason Helper Alabama
8 Mary Wallace 62 Wife — Alabama
9 Irene Wallace 37 Daughter — Alabama
10 Garrett Wallace 24 Son Laborer Alabama
11 Marie Wallace 22 Granddaughter — Alabama
12 Loyce Wallace 20 Grandson — Alabama
13 Calvin Wallace 15 Grandson — Alabama
14 Henry Parker 65 Head — Alabama
15 Mary Parker 27 Wife — Alabama
16 Rosa L. Parker 7 Daughter — Alabama
17 Mattie L. Dawkins 30 Lodger — Alabama
18 Howard Hoyt 39 Head Grinder Alabama
19 Rosa Hoyt 30 Wife — Alabama
20 Johnnie M. Cannon 16 Daughter — Alabama
21 Ruth Hall 20 Cousin — Alabama
22 Theo Calloway 50 Head Fuse Blower Alabama
23 Theo Jr. Calloway 21 Son Labor Alabama
24 Cleo Bennett 28 Daughter — Alabama
25 Mary L. Bennett 10 Granddaughter — Alabama
26 Dorothy L. Bennett 4 Granddaughter — Alabama
27 Nash Lewis 34 Head Linkup Labor Alabama
28 Elvera Lewis 29 Wife — Alabama
29 Stephen Lewis 6 Son — Alabama
30 Lillie B. Lewis 4 Daughter — Alabama
31 Nash Jr. Lewis 2 Son — Alabama
32 Houston Lewis 49 Head Slag Car Labor Alabama
33 Jennie Lewis 42 Wife — Alabama
34 Houston Jr. Lewis 17 Son — Alabama
35 James A. Lewis 15 Son — Alabama
36 Dorothy Lewis 13 Daughter — Alabama
37 Daniel Lewis 11 Son — Alabama
38 John D. Lewis 6 Son — Alabama
39 Margaret Lewis 13 Daughter — Alabama
40 Jessie M. Lewis 12 Granddaughter — Alabama

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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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