Mary Kelley — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Butler-County, Ohio

Our Model Tree links this Mary Kelley across the 1920, 1930 and 1940 US Censuses in Butler-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 4-person household.

Age 49 b. ~1891 Female Spouse Born: Kentucky Married

1940 Census Record Details

Census Year	1940
Location	Butler-County, Ohio
Surname	Kelley
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	49
Marital Status	Married
Birthplace	Kentucky
1935 Residence (City)	R
1935 Residence (County)	Butler
Additional Details
Highest Grade	H-1
1935 Residence	Ohio
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky
Township / Ward	Hamilton
Est. Birth Year	~1891

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Annallee Kelley	Daughter	—	20	~1920
Edna Kelley	Daughter	—	25	~1915
Elbert Kelley	Head	—	48	~1892
Mary Kelley	Spouse	—	49	~1891

Census Appearances

1920

Butler, Ohio

Spouse, age 28

Butler, Ohio · implied b. ~1892 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Kelley
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	28
Marital Status	Married
Birthplace	Kentucky
Father's Birthplace	Kentucky
Mother's Birthplace	Kentucky
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

1930

Butler, Ohio

Spouse, age 38

Butler, Ohio · implied b. ~1892 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Kelley
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Kentucky
Age at First Marriage	22
Father's Birthplace	North Carolina
Mother's Birthplace	Kentucky
Can Read/Write	Yes
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

1940

Butler-County, Ohio

Spouse, age 49

Butler-County, Ohio · implied b. ~1891 — 4 household members

Surname	Kelley
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	49
Marital Status	Married
Birthplace	Kentucky
1935 Residence (City)	R
1935 Residence (County)	Butler
Highest Grade	H-1
1935 Residence	Ohio
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

Model Tree

Linked across censuses

Our Model Tree links Mary Kelley 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 Kelley

Spouse · 1940 · age 49 · b. ~1891 · 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

39 people indexed on this census page (nara:1940:m-t0627-03033-00419)

Line	Name	Age	Relation	Occupation	Birthplace
41	Cordelia Huntington	32	Wife	—	Indiana
42	Carl W. Huntington	12	Son	—	Indiana
43	Robert B. Huntington	10	Son	—	Ohio
44	Chas. Taylor	34	Head	Laborer	Ohio
45	Mary M. Taylor	32	Wife	Retail	Ohio
46	Mary Louise Taylor	13	Daughter	Sales Lady	Ohio
47	William C. Taylor	8	Son	—	Ohio
48	Elbert Kelley	48	Head	Mounting Man	Kentucky
49	Mary Kelley THIS PERSON	49	Wife	—	Kentucky
50	Edna Kelley	25	Daughter	Rag Sorter	Kentucky
51	Annallee Kelley	20	Daughter	—	Ohio
52	Julius Engler	64	Head	—	France
53	Clifford Engler	30	Son	Stove Mounter	Ohio
54	Walter Engler	27	Son	Laborer	Ohio
55	William Engler	25	Son	Filling Station Attendant	Ohio
56	Henry Wessel	63	Head	Laborer	Germany
57	Marianne Wessel	65	Wife	—	Germany
58	Marie Wessel	30	Daughter	Telephone Operator	Ohio
59	Henry Jr. Wessel	28	Son	Time Keeper	Ohio
60	Ferdinand Wessel	23	Son	Electrician Apprentice	Ohio
61	August Winkelman	48	Head	Electric Welder	Germany
62	Marie Winkelman	40	Wife	—	Germany
63	Harry Winkelman	13	Son	—	Ohio
64	Albert Winkelman	11	Son	—	Ohio
65	Josephine Winkelman	10	Daughter	—	Ohio
66	Maria Winkelman	6	Daughter	—	Ohio
67	Hulda Winkelman	3	Daughter	—	Ohio
68	Mary Weisenberger	52	Head	—	Ohio
69	Thelma Weisenberger	29	Daughter	Laborer	Ohio
70	Varda Mae Weisenberger	16	Daughter	Laborer	Ohio
71	Charles Baumann	45	Head	Vice Hand	Ohio
72	Elizabeth Baumann	45	Wife	—	Kentucky
73	Leo Baumann	21	Nephew	Laborer	Ohio
74	Helen Ada Baumann	20	Niece	—	Ohio
75	John Miller	48	Head	Electrical Engineer	Ohio
76	Marie Miller	47	Wife	—	Ohio
77	Calvin Miller	13	Son	—	Ohio
78	Ruth Miller	11	Daughter	—	Ohio
79	Karl Spath	37	Head	Assembler	Austria

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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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