RZ
Robert Zimmerman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Campbell-County, Kentucky
Our Model Tree links this Robert Zimmerman across the 1920, 1930 and 1940 US Censuses in Campbell-County, Kentucky (XGBoost, ~Confirmed), with identified parents Arthur & Arthur — first a son (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Campbell-County, Kentucky |
| Surname | Zimmerman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Ft. Thomas |
| 1935 Residence (County) | Campbell |
| Additional Details | |
| Occupation | Broker |
| Industry | Stocks & Bonds |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Broker |
| Township / Ward | Ft Thomas |
| Est. Birth Year | ~1916 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Arthur Zimmerman | Head | — | 33 | ~1907 |
| Mary Shalow | Other | — | 80 | ~1860 |
| Robert Zimmerman | Son | — | 24 | ~1916 |
| Jordan Zimmerman | Son | — | 21 | ~1919 |
| Ruth Zimmerman | Spouse | — | 31 | ~1909 |
| Ernest Zimmerman | Son | — | 19 | ~1921 |
Census Appearances
1920
Campbell, Kentucky
Son, age 4
Campbell, Kentucky · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Campbell, Kentucky
Son, age 14
Campbell, Kentucky · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Campbell-County, Kentucky
Son, age 24
Campbell-County, Kentucky · implied b. ~1916 — 6 household members
| Surname | Zimmerman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Ft. Thomas |
| 1935 Residence (County) | Campbell |
| Occupation | Broker |
| Industry | Stocks & Bonds |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arthur Zimmerman (~0.92 confidence) and father Arthur Zimmerman (~0.60 confidence) and father Arthur Zimmerman (~0.55 confidence) and mother Ruth Zimmerman (~0.55 confidence) and mother Ruth Zimmerman (~0.60 confidence) and mother Ruth Zimmerman (~0.92 confidence). The pedigree spans 2 generations with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.69
Father
Arthur Zimmerman
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Arthur Zimmerman
b. ~1907
Source father
● Household
· direct · ~0.6
Father
Arthur Zimmerman
b. ~1885
Source father>father
● Household
· direct · ~0.55
Mother
Ruth Zimmerman
b. ~1884
Source father>mother
● Household
· direct · ~0.55
Mother
Ruth Zimmerman
b. ~1909
Source mother
● Household
· direct · ~0.6
Mother
Ruth Zimmerman
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Zimmerman
Son · 1940 · age 24 · b. ~1916 · Kentucky
★ You are viewing this record
Sibling
Jordan Zimmerman
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Zimmerman
Sibling · 1940 · age 19
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
1940 US Federal Census — Campbell-County, Kentucky
Open full size
1940 US Federal Census — Campbell-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01290-00547)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Sweeney | 41 | Head | Pattern Dept. | Kentucky |
| 42 | Marie Sweeney | 40 | Wife | — | Kentucky |
| 43 | Patricia Ann Sweeney | 10 | Daughter | — | Kentucky |
| 44 | John Jr. Sweeney | 8 | Son | — | Kentucky |
| 45 | Mary Sue Sweeney | 7 | Daughter | — | Kentucky |
| 46 | Jane Sweeney | 4 | Daughter | — | Kentucky |
| 47 | Jack Mutschler | 26 | Head | Salesman | Ohio |
| 48 | Mary Louise Mutschler | 25 | Wife | Saleslady | Ohio |
| 49 | Clifford Ley | 41 | Head | Credit Manager | Ohio |
| 50 | Margaret Ley | 38 | Wife | — | Kentucky |
| 51 | John Ley | 16 | Son | — | Ohio |
| 52 | Marie Ley | 14 | Daughter | — | Ohio |
| 53 | Martha Ley | 12 | Daughter | — | Ohio |
| 54 | Anna Shields | 70 | Mother-in-law | — | Ohio |
| 55 | Edwin Mckeon | 70 | Head | Secretary | Indiana |
| 56 | Iona Mckeon | 66 | Wife | — | Ohio |
| 57 | John Mckeon | 31 | Son | Meter Reader | Tennessee |
| 58 | Noel Noatman | 36 | Head | Chemist | Ohio |
| 59 | Gertrude Noatman | 38 | Wife | — | Ohio |
| 60 | Elmer Murdaugh | 52 | Head | Manager | Kentucky |
| 61 | Virginia Murdaugh | 51 | Wife | — | Kentucky |
| 62 | Jack Cunningham | 43 | Head | Manager | Pennsylvania |
| 63 | Elizabeth Cunningham | 41 | Wife | — | Pennsylvania |
| 64 | Harry Cunningham | 18 | Son | — | Kentucky |
| 65 | Mary Cunningham | 16 | Daughter | — | Kentucky |
| 66 | Elizabeth Hyman | 66 | Head | — | Poland |
| 67 | Morris Hyman | 36 | Son | Physician | Ohio |
| 68 | Mary Hyman | 35 | Daughter | Stenographer | Ohio |
| 69 | Charles Hyman | 21 | Son | Salesman | Ohio |
| 70 | Arthur Zimmerman | 33 | Head | Executive | Kentucky |
| 71 | Ruth Zimmerman | 31 | Wife | — | Kentucky |
| 72 | Robert Zimmerman THIS PERSON | 24 | Son | Broker | Kentucky |
| 73 | Jordan Zimmerman | 21 | Son | Salesman | Kentucky |
| 74 | Ernest Zimmerman | 19 | Son | — | Kentucky |
| 75 | Mary Shalow | 80 | Mother-in-law | — | Kentucky |
| 76 | Fred Hartwig | 56 | Head | Manager | Kentucky |
| 77 | Hartwig | None | Wife | — | — |
| 78 | Paul Tonnar | 45 | Head | Mechanical Engineer | Wisconsin |
| 79 | Evelyn Tonnar | 33 | Wife | — | Ohio |
| 80 | May Lefler | 61 | Head | — | Kentucky |
Pedigree Summary
Robert + 2 siblings
Gen 1 · 4 parents
~0.76
Gen 2 · 2 grandparents
~0.55
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)