JF
John Fischer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Brown-County, Minnesota
Our Model Tree links this John Fischer across the 1930 and 1940 US Censuses in Brown-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Brown-County, Minnesota |
| Surname | Fischer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Mulligan Twp. |
| 1935 Residence (County) | Brown |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farm Laborer |
| Township / Ward | Mulligan Twp |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Theresa Fischer | Daughter | — | 11 | ~1929 |
| Elizabeth Fischer | Daughter | — | 22 | ~1918 |
| Josephine Fischer | Daughter | — | 15 | ~1925 |
| Dorothy Fischer | Daughter | — | 9 | ~1931 |
| Gertrude Fischer | Daughter | — | 16 | ~1924 |
| Joseph Fischer | Head | — | 54 | ~1886 |
| Valentine Fischer | Son | — | 7 | ~1933 |
| John Fischer | Son | — | 18 | ~1922 |
| Alfred Fischer | Son | — | 20 | ~1920 |
| Theresa Fischer | Spouse | — | 58 | ~1882 |
Census Appearances
1930
Brown, Minnesota
Son, age 8
Brown, Minnesota · implied b. ~1922 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fischer |
| Given Name | John R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Brown-County, Minnesota
Son, age 18
Brown-County, Minnesota · implied b. ~1922 — 10 household members
| Surname | Fischer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Mulligan Twp. |
| 1935 Residence (County) | Brown |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 18 · b. ~1922 · Minnesota
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Sibling
Josephine Fischer
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Fischer
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Fischer
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Fischer
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Valentine Fischer
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Fischer
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Fischer
Sibling · 1940 · age 22
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 — Brown-County, Minnesota
Open full size
1940 US Federal Census — Brown-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01909-00248)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Philip L Legare | 48 | Head | Farming | Kansas |
| 2 | Valeria Legare | 44 | Wife | — | Minnesota |
| 3 | Joseph Legare | 19 | Son | Farm Laborer | Minnesota |
| 4 | Philip J Legare | 17 | Son | — | Minnesota |
| 5 | Thomas Legare | 16 | Son | — | Minnesota |
| 6 | Robert Legare | 15 | Son | — | Minnesota |
| 7 | Theodore Legare | 13 | Son | — | Minnesota |
| 8 | Richard Legare | 12 | Son | — | Minnesota |
| 9 | Catherine Legare | 10 | Daughter | — | Minnesota |
| 10 | Leona Legare | 8 | Daughter | — | Minnesota |
| 11 | Vincent Legare | 6 | Son | — | Minnesota |
| 12 | Mary Legare | 5 | Daughter | — | Minnesota |
| 13 | James Legare | 1 | Son | — | Minnesota |
| 14 | Florentin Schumacher | 22 | Head | Farming | Minnesota |
| 15 | Arleene Schumacher | 23 | Wife | — | Minnesota |
| 16 | Edwin Schumacher | 59 | Head | Farming | Minnesota |
| 17 | Anna Schumacher | 57 | Wife | — | Minnesota |
| 18 | Joseph G Fischer | 54 | Head | Farming | Minnesota |
| 19 | Theresa Fischer | 58 | Wife | — | Minnesota |
| 20 | Elizabeth Fischer | 22 | Daughter | — | Minnesota |
| 21 | Alfred Fischer | 20 | Son | Farm Laborer | Minnesota |
| 22 | John Fischer THIS PERSON | 18 | Son | Farm Laborer | Minnesota |
| 23 | Gertrude Fischer | 16 | Daughter | — | Minnesota |
| 24 | Josephine Fischer | 15 | Daughter | — | Minnesota |
| 25 | Theresa Fischer | 11 | Daughter | — | Minnesota |
| 26 | Dorothy Fischer | 9 | Daughter | — | Minnesota |
| 27 | Valentine Fischer | 7 | Son | — | Minnesota |
| 28 | Valentine Poos | 34 | Head | Farming | Wisconsin |
| 29 | Mary Poos | 36 | Wife | — | Minnesota |
| 30 | Ardell Poos | 6 | Daughter | — | Minnesota |
| 31 | La Myra Poos | 5 | Daughter | — | Minnesota |
| 32 | Leola Poos | 3 | Daughter | — | Minnesota |
| 33 | Cyrilla Poos | 1 | Daughter | — | Minnesota |
| 34 | Roger Poos | 0 | Son | — | Minnesota |
| 35 | Ambrose Markert | 34 | Head | Farming | Minnesota |
| 36 | Ruby Markert | 25 | Wife | — | Iowa |
| 37 | Dean Markert | 2 | Son | — | Minnesota |
| 38 | Adolf Schlief | 58 | Head | Farming | Minnesota |
| 39 | Barbara Schlief | 55 | Wife | — | Minnesota |
| 40 | Henry Lauf | 44 | Nephew | Farm Laborer | Minnesota |
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)