Mary Cochran — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Butler-County, Ohio

Our Model Tree links this Mary Cochran across the 1920, 1930 and 1940 US Censuses in Butler-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1883), then head of a 5-person household.

Age 57 b. ~1883 Female Spouse Born: Ohio Married

1940 Census Record Details

Census Year	1940
Location	Butler-County, Ohio
Surname	Cochran
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Ross Twp
1935 Residence (County)	Butler
Additional Details
Income (1939)	0
Highest Grade	C 1
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Township / Ward	Ross Twp
Est. Birth Year	~1883

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Virginia Cochran	Daughter	—	25	~1915
Elizabeth Cochran	Daughter	—	23	~1917
James Cochran	Head	—	78	~1862
Anna Cochran	Other	—	72	~1868
Mary Cochran	Spouse	—	57	~1883

Census Appearances

1920

Butler, Ohio

Spouse, age 37

Butler, Ohio · implied b. ~1883 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cochran
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	37
Marital Status	Married
Birthplace	Ohio
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Butler, Ohio

Spouse, age 47

Butler, Ohio · implied b. ~1883 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cochran
Given Name	Mary E
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	47
Marital Status	Married
Birthplace	Ohio
Age at First Marriage	20
Father's Birthplace	Ohio
Mother's Birthplace	Illinois
Class of Worker	W
Can Read/Write	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Butler-County, Ohio

Spouse, age 57

Butler-County, Ohio · implied b. ~1883 — 5 household members

Surname	Cochran
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	57
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Ross Twp
1935 Residence (County)	Butler
Income (1939)	0
Highest Grade	C 1
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Linked across censuses

Our Model Tree links Mary Cochran across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Mary Cochran

Spouse · 1940 · age 57 · b. ~1883 · 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 — Butler-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03035-00850)

Line	Name	Age	Relation	Occupation	Birthplace
41	Edith Gillespie	48	Wife	—	Ohio
42	William Gillespie	22	Son	Farmer	Ohio
43	John Hacker	49	Head	Watchman	Kentucky
44	Miranda Hacker	37	Wife	—	Kentucky
45	James Hacker	18	Son	—	Kentucky
46	Charles Hacker	17	Son	—	Ohio
47	Viola Hacker	14	Daughter	—	Ohio
48	John Hacker	12	Son	—	Ohio
49	Norma Hacker	8	Daughter	—	Ohio
50	James Williams	33	Head	Operator	Kentucky
51	Bertie Williams	35	Wife	—	Kentucky
52	Mary Elizabeth Williams	13	Daughter	—	Ohio
53	James Jr Williams	10	Son	—	Ohio
54	Ronald Williams	8	Son	—	Ohio
55	Carol Williams	2	Daughter	—	Ohio
56	Sam Stokley	41	Head	Truck Driver	Kentucky
57	Carrie Stokley	36	Wife	—	Kentucky
58	Renolds Stokley	66	Father	—	Kentucky
59	Walter Hinkler	64	Head	Farmer	Kentucky
60	Vernon Hinkler	32	Son	Core Maker	Kentucky
61	Joe Hinkler	24	Son	—	Ohio
62	James S Cochran	78	Head	Farmer	Ohio
63	Mary Cochran THIS PERSON	57	Wife	—	Ohio
64	Virginia Cochran	25	Daughter	Teacher	Ohio
65	Elizabeth Jean Cochran	23	Daughter	Teacher	Ohio
66	Anna Cochran	72	Sister	—	Ohio
67	Howard Shutts	42	Head	Truck Driver	Ohio
68	Marie Shutts	39	Wife	—	Kentucky
69	Marjorie Shutts	20	Daughter	—	Ohio
70	Robert Shutts	14	Son	—	Ohio
71	Harold Bowman	35	Head	Truck Driver	Ohio
72	Charlotte Bowman	35	Wife	—	Ohio
73	Albert Robinson	41	Head	Carpenter	Ohio
74	Luda Robinson	44	Wife	Teacher	Ohio
75	Elizabeth George	82	Head	—	Ohio
76	Veda Dinehouse	55	Maid	Nurse	Ohio
77	Otto Mehl	57	Head	Farmer	Ohio
78	Edith Mehl	53	Wife	—	Ohio
79	Albert Mehl	34	Head	Laborer	Ohio
80	Mary Mehl	34	Wife	—	Ohio

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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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