Mary Zimmerman — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Hamilton-County, Ohio

Our Model Tree links this Mary Zimmerman across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 3-person household.

Age 44 b. ~1896 Female Spouse Born: Kentucky Married

1940 Census Record Details

Census Year	1940
Location	Hamilton-County, Ohio
Surname	Zimmerman
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Kentucky
1935 Residence (City)	Lockland City
1935 Residence (County)	Hamilton
Additional Details
Highest Grade	No 8
1935 Residence	Same Place
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky
Township / Ward	Lockland City
Est. Birth Year	~1896

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Ida Zimmerman	Daughter	—	16	~1924
Arthur Zimmerman	Head	—	47	~1893
Mary Zimmerman	Spouse	—	44	~1896

Census Appearances

1920

Hamilton, Ohio

Spouse, age 24

Hamilton, Ohio · implied b. ~1896 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Zimmerman
Given Name	May
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	24
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

Hamilton, Ohio

Spouse, age 33

Hamilton, Ohio · implied b. ~1897 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Zimmerman
Given Name	May
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	33
Marital Status	Married
Birthplace	Kentucky
Age at First Marriage	18
Father's Birthplace	Kentucky
Mother's Birthplace	Kentucky
Can Read/Write	Yes
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

1940

Hamilton-County, Ohio

Spouse, age 44

Hamilton-County, Ohio · implied b. ~1896 — 3 household members

Surname	Zimmerman
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Kentucky
1935 Residence (City)	Lockland City
1935 Residence (County)	Hamilton
Highest Grade	No 8
1935 Residence	Same Place
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

Model Tree

Linked across censuses

Our Model Tree links Mary Zimmerman 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 Zimmerman

Spouse · 1940 · age 44 · b. ~1896 · 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-t0627-03077-00718)

Line	Name	Age	Relation	Occupation	Birthplace
1	Margaret Foster	45	Wife	—	Ohio
2	Paul Foster	20	Son	—	Ohio
3	Arthur Zimmerman	47	Head	Machinist	Kentucky
4	Mary Zimmerman THIS PERSON	44	Wife	—	Kentucky
5	Ida Mae Zimmerman	16	Daughter	—	Ohio
6	Elmer Matthews	36	Head	Brake Shoe	Ohio
7	Claude Monfort	27	Head	Student Asst	Ohio
8	Mildred Monfort	25	Wife	—	Kentucky
9	Bruce Van Zandt	23	Head	Operator	Ohio
10	Palma Van Zandt	21	Wife	—	Kentucky
11	Joseph Van Zandt	3	Son	—	Kentucky
12	Anna Ruth	62	Head	—	North Carolina
13	Charles Ruth	36	Son	Trucker	Tennessee
14	Grady Ruth	35	Daughter	Waitress	Tennessee
15	Nick Tudor	36	Son	Clerk	Tennessee
16	Marie Tudor	31	Daughter	Clerk	Ohio
17	Bert Tudor	3	Son	—	Ohio
18	Nan Tudor	1	Son	—	Ohio
19	Addie Hale	68	Sister	—	North Carolina
20	Robert White	30	Head	Trucker	Indiana
21	Eva White	25	Wife	—	Indiana
22	Robert Jr White	6	Son	—	Indiana
23	Peggy A White	2	Daughter	—	Ohio
24	Alva Bridday	39	Head	Maintenance	Kentucky
25	Dorothy Bridday	32	Wife	—	Ohio
26	Velma Bridday	13	Daughter	—	Ohio
27	Jean Bridday	11	Daughter	—	Ohio
28	Larry Bridday	7	Son	—	Kentucky
29	Irvin Wichman	40	Head	Butcher	Ohio
30	Irene Wichman	40	Wife	—	Ohio
31	Lois Wichman	15	Daughter	—	Ohio
32	Martin Guinnin	64	Head	Conductor	Ohio
33	Ariel Guinnin	38	Daughter	Housekeeper	Ohio
34	Walter Petrey	63	Head	Shingle Maker	Kentucky
35	Maggie Petrey	58	Wife	—	Kentucky
36	Johnie Petrey	23	Son	Shingle Maker	Ohio
37	Lillian Petrey	17	Daughter	—	Ohio
38	Vernon Tryon	31	Head	Mechanic	Tennessee
39	Inez Tryon	33	Wife	—	Tennessee
40	Wayne Tryon	5	Son	—	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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