JF
John Fischer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dewey-County, South Dakota
Our Model Tree links this John Fischer across the 1930 and 1940 US Censuses in Dewey-County, South Dakota (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 8-person household.
Age 46
b. ~1894
Male
Head
Born: North Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dewey-County, South Dakota |
| Surname | Fischer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Eagle Butte Town |
| 1935 Residence (County) | Dewey |
| Additional Details | |
| Occupation | Laborer |
| Industry | W.P.A. Proj |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 499 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Laborer |
| Township / Ward | Eagle Butte Town |
| Est. Birth Year | ~1894 |
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 |
|---|---|---|---|---|
| Irene Fischer | Daughter | — | 11 | ~1929 |
| Mary Fischer | Daughter | — | 5 | ~1935 |
| Eva Fischer | Daughter | — | 16 | ~1924 |
| John Fischer | Head | — | 46 | ~1894 |
| Leo Fischer | Son | — | 18 | ~1922 |
| Andy Fischer | Son | — | 15 | ~1925 |
| Max Fischer | Son | — | 20 | ~1920 |
| Magdalena Fischer | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Dewey, South …
Head, age 35
Dewey, South Dakota · implied b. ~1895 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fischer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | North Dakota |
| Age at First Marriage | 24 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Dewey-County, South …
Head, age 46
Dewey-County, South Dakota · implied b. ~1894 — 8 household members
| Surname | Fischer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Eagle Butte Town |
| 1935 Residence (County) | Dewey |
| Occupation | Laborer |
| Industry | W.P.A. Proj |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 499 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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
Head · 1940 · age 46 · b. ~1894 · South Dakota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Dewey-County, South Dakota
Open full size
1940 US Federal Census — Dewey-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03854-00738)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mar(K) Atkinson | 36 | Head | — | South Dakota |
| 2 | Charles Atkinson | 12 | Son | — | Texas |
| 3 | Mary Sue Atkinson | 8 | Daughter | — | Arkansas |
| 4 | William Shannon | 64 | Head | Janitor | Iowa |
| 5 | Estella (X) Shannon | 59 | Wife | Seamstress | Iowa |
| 6 | Margaret (X) Sporer | 49 | Head | Seamstress | Iowa |
| 7 | Eilien Sporer | 19 | Daughter | Stenographer | South Dakota |
| 8 | Phyllis Sporer | 15 | Daughter | — | South Dakota |
| 9 | Elsie (X) Mattheis | 36 | Head | Seamstress | Nebraska |
| 10 | Beverly Mattheis | 7 | Daughter | — | South Dakota |
| 11 | W. George Vandervin | 18 | Son | Helper | South Dakota |
| 12 | C. Ralph Vandervin | 16 | Son | — | South Dakota |
| 13 | Rev. J. H. (X) Doelsen | 55 | Head | Priest | Germany |
| 14 | Lawrence (X) Davis | 31 | Head | High School Teacher | Iowa |
| 15 | Winnie Davis | 76 | Mother | — | Iowa |
| 16 | Bessie (X) Peters | 38 | Head | — | South Dakota |
| 17 | R. H. (X) Glenny | 34 | Head | — | Illinois |
| 18 | Claire Glenny | 31 | Wife | — | South Dakota |
| 19 | Ri-Anne Glenny | 5 | Daughter | — | South Dakota |
| 20 | Judith Ann Glenny | 3 | Daughter | — | South Dakota |
| 21 | Ray (X) Bayliss | 30 | Head | Barber | Kentucky |
| 22 | Ingeborg Bayliss | 25 | Wife | — | South Dakota |
| 23 | Eileen Lorlain Bayliss | 1 | Daughter | — | South Dakota |
| 24 | Fred (X) Peterson | 62 | Head | Druggist | Denmark |
| 25 | Iney Peterson | 65 | Wife | Secretary | Iowa |
| 26 | Cecil Bask | 25 | Maid | Maid | South Dakota |
| 27 | Mary Jane (X) Jachimi | 78 | Head | — | Russia |
| 28 | Here Jachimi | None | Ends | — | — |
| 29 | John Fischer THIS PERSON | 46 | Head | Laborer | North Dakota |
| 30 | Magdalena Fischer | 39 | Wife | — | North Dakota |
| 31 | Max Fischer | 20 | Son | Laborer | North Dakota |
| 32 | Leo Fischer | 18 | Son | — | North Dakota |
| 33 | Eva Fischer | 16 | Daughter | — | North Dakota |
| 34 | Andy Fischer | 15 | Son | — | North Dakota |
| 35 | Irene Fischer | 11 | Daughter | — | South Dakota |
| 36 | Mary Fischer | 5 | Daughter | — | South Dakota |
| 37 | Anna Leemeister | 75 | Head | — | Russia |
| 38 | Gabriel Jr (X) Dange | 26 | Head | Clerk | North Dakota |
| 39 | Eva Dange | 25 | Wife | — | North Dakota |
| 40 | Daniel Dange | 1 | Son | — | South Dakota |
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)