Robert Zimmerman — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Butler-County, Ohio

Our Model Tree links this Robert Zimmerman across the 1920, 1930 and 1940 US Censuses in Butler-County, Ohio (XGBoost, ~Confirmed), with identified parents Frank & Josephine — first a head (b.~1899), then head of a 3-person household.

Age 41 b. ~1899 Male Head Born: Ohio Married

1940 Census Record Details

Census Year	1940
Location	Butler-County, Ohio
Surname	Zimmerman
Given Name	Robert
Relationship to Head	Head
Sex	M
Color / Race	White
Age	41
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Milford Township
1935 Residence (County)	Butler
Additional Details
Occupation	machinist
Industry	Tool works
Class of Worker	PW
Hours Worked	40
Income (1939)	1750
Highest Grade	No 6
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Occupation	Machinist
Township / Ward	Milford Township
Est. Birth Year	~1899

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 Robert	Age	Birth yr
Jean Zimmerman	Daughter	—	16	~1924
Jeannette Zimmerman	Spouse	—	35	~1905
Robert Zimmerman	Head	—	41	~1899

Census Appearances

1920

Butler, Ohio

Son, age 21

Butler, Ohio · implied b. ~1899 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Zimmerman
Given Name	Robert
Relationship to Head	Son
Sex	M
Color / Race	White
Age	21
Marital Status	Single
Birthplace	Ohio
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Occupation	Machinist
Industry	Machine shop
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Butler, Ohio

Head, age 31

Butler, Ohio · implied b. ~1899 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Zimmerman
Given Name	Robert
Relationship to Head	Head
Sex	M
Color / Race	White
Age	31
Marital Status	Married
Birthplace	Ohio
Age at First Marriage	24
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Occupation	Machinist
Industry	Tool works
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	7
Home Value / Rent	R
Veteran	R
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Butler-County, Ohio

Head, age 41

Butler-County, Ohio · implied b. ~1899 — 3 household members

Surname	Zimmerman
Given Name	Robert
Relationship to Head	Head
Sex	M
Color / Race	White
Age	41
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Milford Township
1935 Residence (County)	Butler
Occupation	machinist
Industry	Tool works
Class of Worker	PW
Hours Worked	40
Income (1939)	1750
Highest Grade	No 6
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Model Tree available

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

Show:

Gen 1 Parents confidence ≈ 0.92

Father

Frank Zimmerman

b. ~1873

Source father

● Household · direct · ~0.92

Mother

Josephine Zimmerman

b. ~1870

Source mother

● Household · direct · ~0.92

This person

Anchor record

Robert Zimmerman

Head · 1940 · age 41 · b. ~1899 · Ohio

★ 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 — Butler-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03035-00617)

Line	Name	Age	Relation	Occupation	Birthplace
1	B. M. Wyckoff	60	Head	Owner Operator	Ohio
2	Clara Wyckoff	50	Wife	—	Ohio
3	Eldon Wyckoff	14	Son	—	Ohio
4	Vera Wyckoff	12	Daughter	—	Ohio
5	Robert Zimmerman THIS PERSON	41	Head	Machinist	Ohio
6	Jeannette Zimmerman	35	Wife	—	Kentucky
7	Jean Zimmerman	16	Daughter	—	Ohio
8	Stanley Alston	44	Head	Machinist	Ohio
9	Anna Alston	39	Wife	—	Ohio
10	Virgil Alston	19	Son	—	Ohio
11	Betty Alston	16	Daughter	—	Ohio
12	Ralph W. Rogers	35	Head	Truck Driver	Ohio
13	Ella M. Rogers	26	Wife	—	Ohio
14	Mollie Newton	10	Step-daughter	—	Ohio
15	Rosalee Newton	8	Step-daughter	—	Ohio
16	Melvin G. Newton	5	Step-son	—	Ohio
17	Wanda Newton	4	Step-daughter	—	Ohio
18	Lester Huffman	31	Head	Stone Mason	Ohio
19	Myrtle Huffman	19	Wife	—	Ohio
20	Mellie Huffman	2	Son	—	Ohio
21	Thelma Huffman	0	Daughter	—	Ohio
22	Elsie Brier	59	Mother-in-law	—	Indiana
23	Clinton Alexander	47	Head	—	Ohio
24	Grace Alexander	46	Wife	—	Ohio
25	Jacob Schmidt	64	Head	—	Germany
26	George Holt	73	Head	—	Ohio
27	Ella Holt	61	Sister	—	Ohio
28	Earl Young	28	Head	Carpenter	Indiana
29	Louise Young	25	Wife	—	Ohio
30	Robert Young	2	Son	—	Ohio
31	Mary Louise Davis	42	Head	Bookkeeper	Ohio
32	Alberta Pratt	30	Roomer	Nurse	Ohio
33	Joseph Abbott	46	Brother	—	Ohio
34	Will George	46	Head	Inspector	Indiana
35	Pearl George	39	Wife	—	Ohio
36	Eldon George	18	Son	—	Indiana
37	Donald George	17	Son	—	Indiana
38	Mildred George	16	Daughter	—	Ohio
39	Glen Long	38	Head	Salesman	Ohio
40	Dortha Long	28	Wife	—	Indiana

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Pedigree Summary

Robert

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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