RZ
Robert Zimmerman — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cuyahoga, Ohio
Our Model Tree links this Robert Zimmerman across the 1910, 1920 and 1930 US Censuses in Cuyahoga, Ohio (XGBoost, ~Confirmed), with identified parents E & Edward — first a son (b.~1908), then head of a 7-person household.
Age 22
b. ~1908
Male
Son
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cuyahoga, Ohio |
| Surname | Zimmerman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Cleveland City |
| Est. Birth Year | ~1908 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| E Zimmerman | Head | — | 48 | ~1882 |
| Ida Zimmerman | Other | — | 45 | ~1885 |
| Anna Zimmerman | Daughter | — | 16 | ~1914 |
| Robert Zimmerman | Son | — | 22 | ~1908 |
| Anna Claffey | Other | — | 78 | ~1852 |
| Richard Billard | Other | — | 25 | ~1905 |
| Karl Zimmerman | Son | — | 2 | ~1928 |
Census Appearances
1910
Cuyahoga, Ohio
Son, age 2
Cuyahoga, Ohio · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Robert G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Cuyahoga, Ohio
Son, age 11
Cuyahoga, Ohio · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Robert G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Cuyahoga, Ohio
Son, age 22
Cuyahoga, Ohio · implied b. ~1908 — 7 household members
| Surname | Zimmerman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Robert Zimmerman across 3 US Census years (1910, 1920 and 1930) in Cuyahoga, Ohio, using XGBoost record linkage. Identified parents: father E Zimmerman (~0.92 confidence) and father Edward Zimmerman (~0.92 confidence) and father Edward Zimmerman (~0.92 confidence) and mother Ida Zimmerman (~0.92 confidence) and mother Ida Zimmerman (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
E Zimmerman
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Edward Zimmerman
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Edward Zimmerman
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Ida Zimmerman
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Ida Zimmerman
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Zimmerman
Son · 1930 · age 22 · b. ~1908 · Ohio
★ You are viewing this record
Sibling
Anna Zimmerman
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Karl Zimmerman
Sibling · 1930 · age 2
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 — Cuyahoga, Ohio
Open full size
1930 US Federal Census — Cuyahoga, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1762rs:0141)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Wm. J. Walsh | 59 | Head | Commissioner | Pennsylvania |
| 52 | Amelia M. Walsh | 59 | Wife-H | None | Ohio |
| 53 | Fred Aichinger | 50 | Head | Clerk | Germany |
| 54 | Lona Aichinger | 52 | Wife-H | None | Germany |
| 55 | Frank N. Dean | 67 | Head | Engineer | New York |
| 56 | Ada M. Dean | 62 | Wife-H | None | Ohio |
| 57 | Stewart Dean | 32 | Son | Accountant | Ohio |
| 58 | J. J. Mcquillen | 32 | Head | Salesman | Ohio |
| 59 | Lucy Mcquillen | 63 | Mother-H | None | Irish Free State |
| 60 | J. Co. Morozko | 52 | Head | Musician | Austria |
| 61 | Josephine Morozko | 47 | Wife-H | None | Ohio |
| 62 | Francis Morozko | 15 | Son | None | Ohio |
| 63 | Carl Morozko | 6 | Son | None | Ohio |
| 64 | Fred W. Newtoch | 57 | Head | Machinist | Ohio |
| 65 | Marie H. Newtoch | 53 | Wife-H | None | Ohio |
| 66 | Kathryn Newtoch | 18 | Daughter | None | Ohio |
| 67 | Jess J. Bennett | 28 | Roomer | Salesman | Vermont |
| 68 | E. D. Zimmerman | 48 | Head | Civil Engineer | Ohio |
| 69 | Ida Zimmerman | 45 | Wife-H | None | Ohio |
| 70 | Robert Zimmerman THIS PERSON | 22 | Son | None | Ohio |
| 71 | Anna Zimmerman | 16 | Daughter | None | Ohio |
| 72 | Karl Zimmerman | 2 | Son | None | Ohio |
| 73 | Anna Claffey | 78 | Mother-in-law | None | Ohio |
| 74 | Richard Billard | 25 | Roomer | Foreman | Ohio |
| 75 | John W. Little | 44 | Head | Salesman | England |
| 76 | Ethel Little | 35 | Wife-H | Saleslady | West Virginia |
| 77 | Nancy Zwicker | 18 | Daughter | Operator | Ohio |
| 78 | Herbert A. Smith | 31 | Head | Musician | Ohio |
| 79 | Maud Smith | 31 | Wife-H | None | New York |
| 80 | Otto H. Poschke | 45 | Head | Manager | Germany |
| 81 | Eliza H. Poschke | 38 | Wife-H | None | Ohio |
| 82 | Otto Poschke | 11 | Son | None | Ohio |
| 83 | Phyllis Poschke | 8 | Daughter | None | Ohio |
| 84 | Charles Poschke | 4 | Son | None | Ohio |
| 85 | Ruth Poschke | 2 | Daughter | None | Ohio |
| 86 | Joe Cervensky | 37 | Head | Police | Ohio |
| 87 | Lenore Cervensky | 36 | Wife-H | None | Ohio |
| 88 | Mary Lou Cervensky | 3 | Daughter | None | Ohio |
| 89 | James Cress | 15 | Step-son | None | Ohio |
| 90 | Elizabeth Cervensky | 63 | Mother-in-law | None | Germany |
| 91 | Frank F. Gessert | 32 | Son | Fireman | Ohio |
| 92 | Agnes Gessert | 32 | Daughter-in-law | None | Ohio |
| 93 | Frank L. Gessert | 64 | Head | Fireman | New York |
| 94 | Nellie Gessert | 58 | Wife-H | None | Ohio |
| 95 | Dorothy Gessert | 18 | Daughter | None | Ohio |
| 96 | Hugh T. Flanagan | 40 | Head | Contractor | Canada-English |
| 97 | Mary Flanagan | 37 | Wife-H | None | Ohio |
| 98 | Emma Harter | 14 | Daughter | None | Ohio |
| 99 | Ethel Newman | 35 | Head-H | Clerk | Ohio |
| 100 | Arline Newman | 14 | Daughter | None | Ohio |
Pedigree Summary
Robert + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)