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Robert Zimmerman — 1930 US Census Record

Linked across censuses

1930 United States Federal Census · Hamilton, Ohio

Our Model Tree links this Robert Zimmerman across the 1920 and 1930 US Censuses in Hamilton, Ohio (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 9-person household.

Age 10 b. ~1920 Male Son Born: Ohio Single

1930 Census Record Details

Census Year	1930
Location	Hamilton, Ohio
Surname	Zimmerman
Given Name	Robert
Relationship to Head	son
Sex	M
Color / Race	White
Age	10
Marital Status	Single
Birthplace	Ohio
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Additional Details
Can Read/Write	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Township / Ward	Deer Park Village
Est. Birth Year	~1920

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.

9 people recorded at the same address in the 1930 census.

Name	Relation to head	Relative to Robert	Age	Birth yr
Jeanette Zimmerman	Daughter	—	2	~1928
Robert Zimmerman	Son	—	10	~1920
Virginia Zimmerman	Daughter	—		~1930
Evellyn Zimmerman	Daughter	—	4	~1926
Frank Zimmerman	Head	—	37	~1893
Martha Zimmerman	Daughter	—	12	~1918
Mary Zimmerman	Other	—	37	~1893
Ralph Zimmerman	Son	—	9	~1921
Elizabeth Zimmerman	Daughter	—	5	~1925

Census Appearances

1920

Hamilton, Ohio

Son, age

Hamilton, Ohio · implied b. ~1920 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Zimmermann
Given Name	Robert H
Relationship to Head	Son
Sex	M
Color / Race	White
Age	0
Marital Status	Single
Birthplace	Ohio
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Hamilton, Ohio

Son, age 10

Hamilton, Ohio · implied b. ~1920 — 9 household members

Surname	Zimmerman
Given Name	Robert
Relationship to Head	son
Sex	M
Color / Race	White
Age	10
Marital Status	Single
Birthplace	Ohio
Father's Birthplace	Ohio
Mother's Birthplace	Ohio
Can Read/Write	Yes
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Linked across censuses

Our Model Tree links Robert Zimmerman across 2 US Census years (1920 and 1930) in Hamilton, Ohio, using XGBoost record linkage.

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This person

Anchor record

Robert Zimmerman

Son · 1930 · age 10 · b. ~1920 · Ohio

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Sibling

Ralph Zimmerman

Sibling · 1930 · age 9

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Evellyn Zimmerman

Sibling · 1930 · age 4

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Elizabeth Zimmerman

Sibling · 1930 · age 5

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Jeanette Zimmerman

Sibling · 1930 · age 2

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Virginia Zimmerman

Sibling · 1930 · age

Source co-child of head (derived)

● Co-child · derived · ~0.88

Sibling

Martha Zimmerman

Sibling · 1930 · age 12

Source co-child of head (derived)

● Co-child · derived · ~0.88

Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1930 US Federal Census — Hamilton, Ohio Open full size

Page Contents

50 people indexed on this census page (ia:1930:ohiocensus00reel1819:0965)

Line	Name	Age	Relation	Occupation	Birthplace
1	Ella Bialforth	38	wife-H	—	Ohio
2	Beulah Bialforth	17	daughter	—	Ohio
3	Herman Bialforth	15	son	—	Ohio
4	Mary Louise Bialforth	11	daughter	—	Ohio
5	Arthur Sanford Bialforth	7	son	—	Ohio
6	Frank E. Whitman	48	Head	Driver	Ohio
7	Effie W. Whitman	44	wife-H	—	Indiana
8	Robert Whitman	17	son	—	Ohio
9	Alma Whitman	15	daughter	—	Ohio
10	Frank Jr. Whitman	10	son	—	Ohio
11	Dewitt Pickens	6	Boarder	—	Ohio
12	Homer Leightle	36	Head	Asst Foreman	Indiana
13	Marie Leightle	26	wife-H	—	Ohio
14	Alice Leightle	9	daughter	—	Indiana
15	Billy Leightle	7	son	—	Indiana
16	Minnie Sage	9	step-daughter	—	Ohio
17	Charles Sage	7	step-son	—	Ohio
18	Frank S. Zimmerman	37	Head	Foreman	Ohio
19	Mary E. Zimmerman	37	wife-H	—	Ohio
20	Martha Zimmerman	12	daughter	—	Ohio
21	Robert Zimmerman THIS PERSON	10	son	—	Ohio
22	Ralph Zimmerman	9	son	—	Ohio
23	Elizabeth Zimmerman	5	daughter	—	Ohio
24	Evellyn Zimmerman	4	daughter	—	Ohio
25	Jeanette Zimmerman	2	daughter	—	Ohio
26	Virginia Zimmerman	0	daughter	—	Ohio
27	Arthur Stafford	24	Head	Body Builder	Indiana
28	Edith Stafford	26	wife-H	—	Indiana
29	Mary Ann Stafford	2	daughter	—	Ohio
30	Raymond Snider	31	Head	Painter	Ohio
31	Anna Snider	32	wife-H	—	Tennessee
32	James Snider	9	son	—	Ohio
33	Karl Snider	7	son	—	Ohio
34	Jean Snider	4	daughter	—	Ohio
35	Helen Snider	3	son	—	Ohio
36	Claude West	35	Head	Assembler	Kentucky
37	Lillian West	27	wife-H	—	Ohio
38	Dicky West	6	son	—	Ohio
39	Patricia West	1	daughter	—	Ohio
40	Floyd Cordes	25	Head	Machinist	Ohio
41	Leavelyn Cordes	22	wife-H	—	Ohio
42	Elza Bartimus	45	Head	Carpenter	Ohio
43	Florence Bartimus	45	wife-H	—	Ohio
44	Agnes Bartimus	22	daughter	Stenographer	Ohio
45	Chester Bartimus	15	son	—	Ohio
46	Vivian Bartimus	2	daughter	—	Ohio
47	George Hickman	34	Head	Caretaker	Kentucky
48	Blanche Hickman	29	wife-H	—	Kentucky
49	Jack Hickman	11	son	—	Ohio
50	Irene Hickman	6	daughter	—	Kentucky

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1930 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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