FZ
Fred Zimmerman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mahoning-County, Ohio
Our Model Tree links this Fred Zimmerman across the 1920, 1930 and 1940 US Censuses in Mahoning-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 4-person household.
Age 49
b. ~1891
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mahoning-County, Ohio |
| Surname | Zimmerman |
| Given Name | Fred W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Boardman Twp |
| 1935 Residence (County) | Mahoning |
| Additional Details | |
| Occupation | Dentist |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 35 |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Dentist |
| Township / Ward | Boardman Twp |
| Est. Birth Year | ~1891 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Fred | Age | Birth yr |
|---|---|---|---|---|
| Lillian Zimmerman | Daughter | — | 22 | ~1918 |
| John Zimmerman | Son | — | 16 | ~1924 |
| Fred Zimmerman | Head | — | 49 | ~1891 |
| Olive Zimmerman | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Mahoning, Ohio
Head, age 29
Mahoning, Ohio · implied b. ~1891 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Fred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Doctor |
| Industry | Orthodontist |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Mahoning, Ohio
Head, age 39
Mahoning, Ohio · implied b. ~1891 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Fred W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 21 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Orthodontist |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 10000 |
| Radio Set | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Mahoning-County, Ohio
Head, age 49
Mahoning-County, Ohio · implied b. ~1891 — 4 household members
| Surname | Zimmerman |
| Given Name | Fred W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Boardman Twp |
| 1935 Residence (County) | Mahoning |
| Occupation | Dentist |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 35 |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| 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 Fred Zimmerman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Fred Zimmerman
Head · 1940 · age 49 · b. ~1891 · 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 — Mahoning-County, Ohio
Open full size
1940 US Federal Census — Mahoning-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03108-00371)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Virginia Lauer | 40 | Daughter | Sales Clerk | Ohio |
| 2 | John Raymond | 21 | Son | Collector | Ohio |
| 3 | William Arbuckle | 32 | Lodger | Sales Clerk | Ohio |
| 4 | Maurice H Dean | 31 | Head | Operator | Penn |
| 5 | Mary P Dean | 27 | Wife | — | Penn |
| 6 | Joyce M Dean | 1 | Daughter | — | Ohio |
| 7 | Robert M Dean | 0 | Son | — | Ohio |
| 8 | Paul C Blake | 37 | Head | Bookkeeper | Ohio |
| 9 | Anne L Blake | 31 | Wife | — | Ohio |
| 10 | Philip R Blake | 6 | Son | — | Ohio |
| 11 | Richard L Blake | 3 | Son | — | Ohio |
| 12 | William V Blake | 1 | Son | — | Ohio |
| 13 | Wymond Russell | 42 | Head | Shipper | Ohio |
| 14 | Mildred A Russell | 35 | Wife | — | Ohio |
| 15 | Jean E Russell | 16 | Daughter | — | Ohio |
| 16 | Grace M Russell | 14 | Daughter | — | Ohio |
| 17 | James M Russell | 10 | Son | — | Ohio |
| 18 | Richard W Russell | 6 | Son | — | Ohio |
| 19 | Randall Q Rothgeb | 29 | Head | Salesman | Ohio |
| 20 | Edith H Rothgeb | 30 | Wife | — | Ohio |
| 21 | Judith Ann Rothgeb | 1 | Daughter | — | Ohio |
| 22 | Clara E Bowshot | 51 | Head | Maid | Penn |
| 23 | Robert B Jones | 41 | Head | Biller | Penn |
| 24 | Edith J Jones | 37 | Wife | — | Penn |
| 25 | Robert D Jones | 18 | Son | — | Ohio |
| 26 | Barbara J Jones | 7 | Daughter | — | Ohio |
| 27 | Fred W Zimmerman THIS PERSON | 49 | Head | Dentist | Ohio |
| 28 | Olive M Zimmerman | 47 | Wife | — | Ohio |
| 29 | Lillian L Zimmerman | 22 | Daughter | — | Ohio |
| 30 | John F Zimmerman | 16 | Son | — | Ohio |
| 31 | George E Wylie | 58 | Head | Painter | Penn |
| 32 | Edna V Wylie | 55 | Wife | — | West Va |
| 33 | George B Wylie | 34 | Son | Roll Turner | West Va |
| 34 | Julia A Wylie | 29 | Daughter-in-law | — | Ohio |
| 35 | Leon C Wylie | 10 | Grandson | — | Ohio |
| 36 | Marjorie L Wylie | 9 | Granddaughter | — | Ohio |
| 37 | Deanna K Wylie | 1 | Granddaughter | — | Ohio |
| 38 | Harry A Shane | 52 | Head | Painter | Penn |
| 39 | Lula M Shane | 51 | Wife | — | Penn |
| 40 | Roy E Shane | 22 | Son | Shear Helper | Ohio |
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)