ES
Emma Schmidt — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Iroquois-County, Illinois
Our Model Tree links this Emma Schmidt across the 1920, 1930 and 1940 US Censuses in Iroquois-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 4-person household.
Age 50
b. ~1890
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Iroquois-County, Illinois |
| Surname | Schmidt |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Ash Grove Twp. |
| 1935 Residence (County) | Iroquois |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Ash Grove Twp |
| Est. Birth Year | ~1890 |
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 Emma | Age | Birth yr |
|---|---|---|---|---|
| Henry Schmidt | Son | — | 18 | ~1922 |
| Theodore Schmidt | Son | — | 15 | ~1925 |
| Ernest Schmidt | Head | — | 51 | ~1889 |
| Emma Schmidt | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Iroquois, Illinois
Spouse, age 30
Iroquois, Illinois · implied b. ~1890 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Emma |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Iroquois, Illinois
Spouse, age 40
Iroquois, Illinois · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 29 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Iroquois-County, Illinois
Spouse, age 50
Iroquois-County, Illinois · implied b. ~1890 — 4 household members
| Surname | Schmidt |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Ash Grove Twp. |
| 1935 Residence (County) | Iroquois |
| Industry | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Emma Schmidt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Emma Schmidt
Spouse · 1940 · age 50 · b. ~1890 · Illinois
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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 — Iroquois-County, Illinois
Open full size
1940 US Federal Census — Iroquois-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00813-00062)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Nielsen | 49 | Head | Farmer | Illinois |
| 2 | Thekla Nielsen | 45 | Wife | — | Illinois |
| 3 | Elwood Nielsen | 19 | Son | Farm Laborer | Illinois |
| 4 | John Clifton | 65 | Head | Farmer | Illinois |
| 5 | June Clifton | 49 | Wife | — | Illinois |
| 6 | John C. Clifton | 21 | Son | Farm Laborer | Illinois |
| 7 | Robert M. Clifton | 17 | Son | — | Illinois |
| 8 | Martin D. Bohlmann | 40 | Head | Farmer | Illinois |
| 9 | Gertrude E. Bohlmann | 33 | Wife | — | Illinois |
| 10 | Melvin Bohlmann | 12 | Son | — | Illinois |
| 11 | Donald Bohlmann | 10 | Son | — | Illinois |
| 12 | Elfrieda Bohlmann | 9 | Daughter | — | Illinois |
| 13 | Edward Bohlmann | 8 | Son | — | Illinois |
| 14 | Richard Bohlmann | 5 | Son | — | Illinois |
| 15 | Willard Bohlmann | 1 | Son | — | Illinois |
| 16 | David Bohlmann | 0 | Son | — | Illinois |
| 17 | John Durell | 50 | Head | Farmer | Germany |
| 18 | Anna Durell | 45 | Wife | — | Illinois |
| 19 | Christ Van Hoveln | 64 | Head | Farmer | Illinois |
| 20 | John C. Wichmann | 33 | Head | Farmer | Illinois |
| 21 | Elsie Wichmann | 27 | Wife | — | Illinois |
| 22 | Gertrude Wichmann | 3 | Daughter | — | Illinois |
| 23 | Gloria Wichmann | 2 | Daughter | — | Illinois |
| 24 | Wilbur Durell | 29 | Head | Farmer | Illinois |
| 25 | Elizabeth Durell | 23 | Wife | — | Illinois |
| 26 | Loretta May Durell | 3 | Daughter | — | Illinois |
| 27 | Ruth Marie Durell | 1 | Daughter | — | Illinois |
| 28 | Herman D. Schroeder | 64 | Head | Farmer | Germany |
| 29 | John Eilers | 72 | Head | Farmer | Germany |
| 30 | Fannie Eilers | 70 | Wife | — | Germany |
| 31 | Harm F. Lucht | 77 | Head | Farmer | Germany |
| 32 | Katie Lucht | 67 | Wife | — | Nebraska |
| 33 | Ernest Schmidt | 51 | Head | Farmer | Illinois |
| 34 | Emma Schmidt THIS PERSON | 50 | Wife | — | Illinois |
| 35 | Henry Schmidt | 18 | Son | Farm Laborer | Illinois |
| 36 | Theodore Schmidt | 15 | Son | — | Illinois |
| 37 | Louis F. Schroeder | 33 | Head | Farmer | Illinois |
| 38 | Lela Schroeder | 32 | Wife | — | Illinois |
| 39 | Kenneth Schroeder | 8 | Son | — | Illinois |
| 40 | Carolyn Schroeder | 6 | Daughter | — | Illinois |
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)