JF
John Fischer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Posey-County, Indiana
Our Model Tree links this John Fischer across the 1930 and 1940 US Censuses in Posey-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 9-person household.
Age 17
b. ~1923
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Posey-County, Indiana |
| Surname | Fischer |
| Given Name | John R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Marrs Township |
| 1935 Residence (County) | Posey |
| Additional Details | |
| Occupation | laborer |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 866 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Laborer |
| Township / Ward | Marrs Township |
| Est. Birth Year | ~1923 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Fischer | Daughter | — | 9 | ~1931 |
| Patricia Fischer | Daughter | — | 7 | ~1933 |
| Dorothy Fischer | Daughter | — | 17 | ~1923 |
| John Fischer | Head | — | 41 | ~1899 |
| William Fischer | Son | — | 11 | ~1929 |
| Richard Fischer | Son | — | 13 | ~1927 |
| Francis Fischer | Son | — | 15 | ~1925 |
| John Fischer | Son | — | 17 | ~1923 |
| Florence Fischer | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Posey, Indiana
Other, age 8
Posey, Indiana · implied b. ~1922 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fischer |
| Given Name | John R. |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Posey-County, Indiana
Son, age 17
Posey-County, Indiana · implied b. ~1923 — 9 household members
| Surname | Fischer |
| Given Name | John R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Marrs Township |
| 1935 Residence (County) | Posey |
| Occupation | laborer |
| Industry | farm |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 866 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Fischer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Fischer
Son · 1940 · age 17 · b. ~1923 · Indiana
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Sibling
Francis Fischer
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Fischer
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Fischer
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Fischer
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Fischer
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Fischer
Sibling · 1940 · age 13
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 — Posey-County, Indiana
Open full size
1940 US Federal Census — Posey-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01087-00372)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John A. Fischer | 41 | Head | Farming | Indiana |
| 2 | Florence C. Fischer | 43 | Wife | — | Indiana |
| 3 | John R. Fischer THIS PERSON | 17 | Son | Laborer | Indiana |
| 4 | Dorothy E. Fischer | 17 | Daughter | — | Indiana |
| 5 | Francis Joseph Fischer | 15 | Son | — | Indiana |
| 6 | Richard Jerome Fischer | 13 | Son | — | Indiana |
| 7 | William H. Fischer | 11 | Son | — | Indiana |
| 8 | Mary Jean Fischer | 9 | Daughter | — | Indiana |
| 9 | Patricia Ann Fischer | 7 | Daughter | — | Indiana |
| 10 | George J. Schroeder | 37 | Head | Farming | Indiana |
| 11 | Martha E. Schroeder | 36 | Wife | — | Indiana |
| 12 | Raymond H. Schroeder | 12 | Son | — | Indiana |
| 13 | Ruth B. Schroeder | 11 | Daughter | — | Indiana |
| 14 | Mary Ann Schroeder | 9 | Daughter | — | Indiana |
| 15 | Mildred F. Schroeder | 7 | Daughter | — | Indiana |
| 16 | Ervin E. Schroeder | 5 | Son | — | Indiana |
| 17 | Norman D. Schroeder | 3 | Son | — | Indiana |
| 18 | David H. Schroeder | 1 | Son | — | Indiana |
| 19 | George H. Wilderman | 28 | Head | Laborer | Indiana |
| 20 | Philimenia Wilderman | 21 | Wife | — | Indiana |
| 21 | Mary Popmeier | 63 | Head | — | Indiana |
| 22 | Walter Popmeier | 37 | Son | Farming | Indiana |
| 23 | Nora Popmeier | 24 | Daughter | — | Indiana |
| 24 | Emma Popmeier | 21 | Daughter | — | Indiana |
| 25 | Joseph Basil O'Leary | 54 | Head | Meter Reader | Kentucky |
| 26 | Eletta H. O'Leary | 51 | Wife | — | Kentucky |
| 27 | Emma O'Leary | 14 | Daughter | — | Kentucky |
| 28 | Henry Seifert | 64 | Head | Farming | Indiana |
| 29 | Annagetta Seifert | 60 | Wife | — | Indiana |
| 30 | Ester Seifert | 35 | Daughter | Sales Lady | Indiana |
| 31 | Erma Seifert | 26 | Daughter | — | Indiana |
| 32 | Elmer Seifert | 22 | Son | Bookkeeping | Indiana |
| 33 | Earl Seifert | 17 | Son | — | Indiana |
| 34 | William Kramer | 64 | Head | Farming | Indiana |
| 35 | Margaret Kramer | 46 | Wife | — | Indiana |
| 36 | Wallace Kramer | 25 | Son | Teaching | Indiana |
| 37 | George Sobbel | 25 | Head | Truck Driver | Indiana |
| 38 | Lucille Sobbel | 24 | Wife | — | Indiana |
| 39 | Oral Killion | 35 | Head | Preacher | Indiana |
| 40 | Edna Killion | 37 | Wife | — | Illinois |
Related Census Records
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)