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John Schaffer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allen-County, Ohio
Our Model Tree links this John Schaffer across the 1930 and 1940 US Censuses in Allen-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 8-person household.
Age 15
b. ~1925
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allen-County, Ohio |
| Surname | Schaffer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Landick |
| 1935 Residence (County) | Allen |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Landick |
| Est. Birth Year | ~1925 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Schaffer | Daughter | — | 11 | ~1929 |
| Lassie Schaffer | Son | — | 20 | ~1920 |
| Mary Schaffer | Other | — | 64 | ~1876 |
| Thomas Schaffer | Son | — | 5 | ~1935 |
| Ollivia Schaffer | Spouse | — | 40 | ~1900 |
| Raymond Schaffer | Head | — | 45 | ~1895 |
| John Schaffer | Son | — | 15 | ~1925 |
| Herman Schaffer | Son | — | 17 | ~1923 |
Census Appearances
1930
Allen, Ohio
Son, age 5
Allen, Ohio · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schaffer |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Allen-County, Ohio
Son, age 15
Allen-County, Ohio · implied b. ~1925 — 8 household members
| Surname | Schaffer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Landick |
| 1935 Residence (County) | Allen |
| Highest Grade | No 7 |
| 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 John Schaffer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Schaffer
Son · 1940 · age 15 · b. ~1925 · Ohio
★ You are viewing this record
Sibling
Herman Schaffer
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Schaffer
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Schaffer
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lassie Schaffer
Sibling · 1940 · age 20
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 — Allen-County, Ohio
Open full size
1940 US Federal Census — Allen-County, Ohio
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03020-00428)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rose Pohlman | 25 | Wife | Beer Parlor | Ohio |
| 2 | Ollie Hotz | 37 | Head | Beer Parlor Operator | Ohio |
| 3 | Luella Hotz | 24 | Wife | Waitress | Ohio |
| 4 | Clarence Hotz | 6 | Son | — | Ohio |
| 5 | Lacie W Hotz | 1 | Son | — | Ohio |
| 7 | Raymond Schaffer | 45 | Head | Farmer | Ohio |
| 8 | Ollivia Schaffer | 40 | Wife | Farmer | Ohio |
| 9 | Lassie Schaffer | 20 | Son | Farmer | Ohio |
| 10 | Herman Schaffer | 17 | Son | Farmer | Ohio |
| 11 | John Schaffer THIS PERSON | 15 | Son | — | Ohio |
| 12 | Mary Ellen Schaffer | 11 | Daughter | — | Ohio |
| 13 | Thomas Schaffer | 5 | Son | — | Ohio |
| 14 | Mary Schaffer | 64 | Mother | — | Ohio |
| 15 | John J Lucas | 73 | Head | Farmer | Ohio |
| 16 | Elizabeth Lucas | 69 | Wife | Farmer | Ohio |
| 17 | Seberius Lucas | 33 | Son | Farmer | Ohio |
| 18 | Marianus Lucas | 30 | Daughter | Farmer | Ohio |
| 19 | Caroline Lucas | 38 | Daughter | Farmer | Ohio |
| 20 | Philip Wiltner | 70 | Head | Farmer | W. Ohio |
| 21 | Emma Wiltner | 63 | Wife | — | Ohio |
| 22 | Alice Wiltner | 25 | Daughter | — | Ohio |
| 23 | Clarence Etzkorn | 35 | Head | Farmer | Ohio |
| 24 | Celia Etzkorn | 30 | Wife | — | Ohio |
| 25 | Dolores Etzkorn | 11 | Daughter | — | Ohio |
| 26 | Angela Etzkorn | 4 | Daughter | — | Ohio |
| 27 | Karl Kimmerl | 22 | Hired hand | Farm Hand | Ohio |
| 28 | Tony Wienken | 67 | Head | — | Ohio |
| 29 | Lineus R Kill | 31 | Head | Assembler | Ohio |
| 30 | Francis B Kill | 30 | Wife | — | Ohio |
| 31 | Mary Kill | 6 | Daughter | — | Ohio |
| 32 | Yvonne Kill | 3 | Daughter | — | Ohio |
| 33 | Albert D Karat | 35 | Head | Farmer | Ohio |
| 34 | Margaret Karat | 64 | Mother | Farmer | Ohio |
| 35 | Klaus Oswalt | 41 | Head | Carpenter | Ohio |
| 36 | Irene Oswalt | 38 | Wife | Farmer | Ohio |
| 37 | Leroy Oswalt | 18 | Son | Carpenter | Ohio |
| 38 | Paul Oswalt | 14 | Son | — | Ohio |
| 39 | Mildred Oswalt | 11 | Daughter | — | Ohio |
| 40 | Virginia Oswalt | 9 | Daughter | — | 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)