John Gray — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Hamilton-County, Ohio

Our Model Tree links this John Gray across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents Will & May — first a head (b.~1902), then head of a 8-person household.

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

1940 Census Record Details

Census Year	1940
Location	Hamilton-County, Ohio
Surname	Gray
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Kentucky
1935 Residence (City)	Cincinnati
1935 Residence (County)	Hamilton
Additional Details
Occupation	Laborer
Industry	Machine Shop
Class of Worker	PW
Hours Worked	40
Income (1939)	800
Highest Grade	No 8
1935 Residence	Ohio
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky
Occupation	Laborer
Township / Ward	Symmes
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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Helen Gray	Daughter	—	16	~1924
Waneta Gray	Daughter	—	15	~1925
Wilma Gray	Daughter	—	3	~1937
Lorain Gray	Daughter	—	12	~1928
John Gray	Head	—	38	~1902
James Gray	Son	—	1	~1939
Cecil Gray	Son	—	10	~1930
Hanan Gray	Spouse	—	34	~1906

Census Appearances

1920

Hamilton, Ohio

Son, age 20

Hamilton, Ohio · implied b. ~1900 — 8 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Gray
Given Name	John
Relationship to Head	Son
Sex	M
Color / Race	White
Age	20
Marital Status	Single
Birthplace	Kentucky
Father's Birthplace	Kentucky
Mother's Birthplace	Kentucky
Occupation	Machine hand
Industry	Candle Factory
Class of Worker	W
Can Read	No
Can Write	Yes
Speaks English	Yes
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

1930

Hamilton, Ohio

Head, age 29

Hamilton, Ohio · implied b. ~1901 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Gray
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	29
Marital Status	Married
Birthplace	Kentucky
Age at First Marriage	21
Father's Birthplace	Kentucky
Mother's Birthplace	Kentucky
Occupation	leather stripper
Industry	tannery
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	15.00
Veteran	No
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

1940

Hamilton-County, Ohio

Head, age 38

Hamilton-County, Ohio · implied b. ~1902 — 8 household members

Surname	Gray
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Kentucky
1935 Residence (City)	Cincinnati
1935 Residence (County)	Hamilton
Occupation	Laborer
Industry	Machine Shop
Class of Worker	PW
Hours Worked	40
Income (1939)	800
Highest Grade	No 8
1935 Residence	Ohio
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

Model Tree

Model Tree available

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

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Will Gray

b. ~1875

Source father

● Household · direct · ~0.92

Mother

May Gray

b. ~1877

Source mother

● Household · direct · ~0.92

This person

Anchor record

John Gray

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

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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 — Hamilton-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03080-00927)

Line	Name	Age	Relation	Occupation	Birthplace
41	Samuel Warren	40	Head	Labor	Tennessee
42	Lillie Warren	36	Wife	—	Kentucky
43	Bennie Warren	11	Son	—	Ohio
44	Donnie Warren	10	Son	—	Ohio
45	Harry Warren	5	Son	—	Ohio
46	Sandra Warren	2	Daughter	—	Ohio
47	Robert H. Abney	42	Head	Labor	Kentucky
48	Minnie Abney	42	Wife	—	Kentucky
49	Anna Abney	17	Daughter	New Worker	Kentucky
50	Sheldon Abney	16	Son	—	Kentucky
51	Clara Abney	13	Daughter	—	Kentucky
52	Paul Bastin	33	Head	Packer	Kentucky
53	Edith Bastin	30	Wife	—	Kentucky
54	Gerald Bastin	6	Son	—	Ohio
55	Paul Bastin	3	Son	—	Ohio
56	Marilyn Bastin	2	Daughter	—	Ohio
57	Richard Ernst	22	Head	Paint Sprayer	Ohio
58	Opal Ernst	19	Wife	—	Ohio
59	Ramona Ernst	1	Daughter	—	Ohio
60	Thomas Wenman	36	Head	Plasterer	Kentucky
61	Gladys Wenman	32	Wife	—	Ohio
62	Thomas Wenman	12	Son	—	Ohio
63	Shirley Wenman	10	Daughter	—	Ohio
64	Irvin Wenman	7	Son	—	Ohio
65	Betty Jo Wenman	1	Daughter	—	Ohio
66	John Gray THIS PERSON	38	Head	Laborer	Kentucky
67	Hanan Gray	34	Wife	—	Kentucky
68	Helen Gray	16	Daughter	—	Ohio
69	Waneta Gray	15	Daughter	—	Ohio
70	Lorain Gray	12	Daughter	—	Kentucky
71	Cecil Gray	10	Son	—	Ohio
72	Wilma Gray	3	Daughter	—	Ohio
73	James Gray	1	Son	—	Ohio
74	David Gross	39	Head	Mechanic	Kentucky
75	Lady Gross	37	Wife	—	Kentucky
76	Thermon Gross	17	Son	—	Kentucky
77	Charles Gross	16	Son	—	Ohio
78	Harold Gross	15	Son	—	Ohio
79	Florence Gross	10	Daughter	—	Ohio
80	David Son Gross	5	Son	—	Ohio

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Pedigree Summary

John

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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