William Cox — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Bibb-County, Alabama

Our Model Tree links this William Cox across the 1920, 1930 and 1940 US Censuses in Bibb-County, Alabama (XGBoost, ~Confirmed), with identified parents John & Mary — first a head (b.~1902), then head of a 7-person household.

Age 38 b. ~1902 Male Head Born: Alabama Married

1940 Census Record Details

Census Year	1940
Location	Bibb-County, Alabama
Surname	Cox
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Alabama
1935 Residence (City)	R
1935 Residence (County)	Jefferson
Additional Details
Occupation	Hoister
Industry	Coal Mine
Class of Worker	PW
Hours Worked	40
Income (1939)	900
Highest Grade	H 2
1935 Residence	Alabama
Birth State	Alabama
Birth Country	United States
Birthplace (normalized)	alabama
Occupation	Hoister
Township / Ward	West Blocton
Est. Birth Year	~1902

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.

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

Name	Relation to head	Relative to William	Age	Birth yr
Kathryn Cox	Daughter	—	16	~1924
Peggy Cox	Daughter	—	10	~1930
William Cox	Head	—	38	~1902
William Cox	Son	—	15	~1925
Thomas Cox	Son	—	9	~1931
Charles Cox	Son	—	13	~1927
Ola Cox	Spouse	—	37	~1903

Census Appearances

1920

Bibb, Alabama

Son, age 16

Bibb, Alabama · implied b. ~1904 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cox
Given Name	William L
Relationship to Head	Son
Sex	M
Color / Race	White
Age	16
Marital Status	Single
Birthplace	Alabama
Father's Birthplace	Alabama
Mother's Birthplace	Alabama
Occupation	Laborer
Industry	Saw mill
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Alabama
Birth Country	United States
Birthplace (normalized)	alabama

1930

Bibb, Alabama

Head, age 25

Bibb, Alabama · implied b. ~1905 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cox
Given Name	Will
Relationship to Head	Head
Sex	M
Color / Race	Black
Age	25
Marital Status	Married
Birthplace	Alabama
Age at First Marriage	18
Father's Birthplace	Alabama
Mother's Birthplace	Alabama
Occupation	Farmer
Industry	General Farm
Class of Worker	VVVV
Can Read/Write	Yes
Home Owned/Rented	R
Birth State	Alabama
Birth Country	United States
Birthplace (normalized)	alabama

1940

Bibb-County, Alabama

Head, age 38

Bibb-County, Alabama · implied b. ~1902 — 7 household members

Surname	Cox
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Alabama
1935 Residence (City)	R
1935 Residence (County)	Jefferson
Occupation	Hoister
Industry	Coal Mine
Class of Worker	PW
Hours Worked	40
Income (1939)	900
Highest Grade	H 2
1935 Residence	Alabama
Birth State	Alabama
Birth Country	United States
Birthplace (normalized)	alabama

Model Tree

Model Tree available

Our Model Tree links William Cox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Cox (~0.92 confidence) and mother Mary Cox (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.

Show:

Gen 1 Parents confidence ≈ 0.92

Father

John Cox

b. ~1877

Source father

● Household · direct · ~0.92

Mother

Mary Cox

b. ~1884

Source mother

● Household · direct · ~0.92

This person

Anchor record

William Cox

Head · 1940 · age 38 · b. ~1902 · Alabama

★ You are viewing this record

Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Bibb-County, Alabama Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00004-00451)

Line	Name	Age	Relation	Occupation	Birthplace
1	Colman Parker	51	Head	Conductor	Alabama
2	Lelia Parker	39	Wife	—	Alabama
3	James A. Parker	21	Son	—	Alabama
4	Margaret A. Parker	19	Daughter	N.Y.A.	Alabama
5	Lemuel Parker	11	Son	—	Alabama
6	Louie Parker	4	Son	—	Alabama
7	John Bolson	73	Head	—	Alabama
8	Lelia Bolson	72	Wife	—	Alabama
9	Reese S. Parker	80	Head	General Manager	Alabama
10	Joseph Johnson	47	Head	Agent	Tennessee
11	Anna Johnson	46	Wife	—	Tennessee
12	Joe M. Johnson	21	Son	—	Alabama
13	Orie Johnson	12	Son	—	Alabama
14	Lula Smith	69	Head	—	Alabama
15	Lydia Smith	58	Sister	Bookkeeper	Alabama
16	Alice Smith	57	Sister	Clerk	Alabama
17	Harrison Huff	55	Head	Time Keeper	Alabama
18	Mary V. Huff	53	Wife	—	Alabama
19	Carl Durch	43	Head	Manager	Alabama
20	Louella Durch	43	Wife	—	Alabama
21	Carl Jr. Durch	13	Son	—	Alabama
22	Carl Nicholson	30	Head	Machine Operator	Alabama
23	Lucile Nicholson	22	Wife	—	Alabama
24	Jerry Nicholson	5	Son	—	Alabama
25	Robert Lucas	40	Lodger	Laborer	Alabama
26	Charlie Milstead	26	Lodger	Laborer	Alabama
27	Percy Riley	31	Head	Laborer	Alabama
28	Mildred Riley	24	Wife	—	Alabama
29	Joan Riley	5	Daughter	—	Alabama
30	Percy Jr. Riley	2	Son	—	Alabama
31	J. H. Sewell	23	Son-in-law	Collector	Alabama
32	Hilma Sewell	16	Sister-in-law	—	Alabama
33	James H. Sewell	12	Nephew	—	Alabama
34	William Cox THIS PERSON	38	Head	Hoister	Alabama
35	Ola Cox	37	Wife	—	Alabama
36	Kathryn Cox	16	Daughter	—	Alabama
37	William Jr. Cox	15	Son	—	Alabama
38	Charles Cox	13	Son	—	Alabama
39	Peggy Jean Cox	10	Daughter	—	Alabama
40	Thomas Cox	9	Son	—	Alabama

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Pedigree Summary

William

Gen 1 · 2 parents ~0.92

Max depth 4 (1900–1950 window)

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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