AS
Arthur Schmidt — 1940 US Census Record
Model Tree available1940 United States Federal Census · Monroe-County, Illinois
Our Model Tree links this Arthur Schmidt across the 1920, 1930 and 1940 US Censuses in Monroe-County, Illinois (XGBoost, ~Confirmed), with identified parents George & George — first a son (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Illinois |
| Surname | Schmidt |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Renault Precinct |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Renault Precinct |
| Est. Birth Year | ~1915 |
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 Arthur | Age | Birth yr |
|---|---|---|---|---|
| John Schmidt | Head | — | 66 | ~1874 |
| Oliver Schmidt | Son | — | 21 | ~1919 |
| Rebecca Schmidt | Spouse | — | 59 | ~1881 |
| Arthur Schmidt | Son | — | 25 | ~1915 |
Census Appearances
1920
St Clair, …
Son, age 4
St Clair, Illinois · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
St Clair, …
Son, age 15
St Clair, Illinois · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Arthur E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Monroe-County, Illinois
Son, age 25
Monroe-County, Illinois · implied b. ~1915 — 4 household members
| Surname | Schmidt |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Renault Precinct |
| 1935 Residence (County) | Monroe |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Arthur Schmidt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Schmidt (~0.92 confidence) and father George Schmidt (~0.92 confidence) and father John Schmidt (~0.92 confidence) and mother Ida Schmidt (~0.92 confidence) and mother Nellie Schmidt (~0.92 confidence) and mother Rebecca Schmidt (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Schmidt
b. ~1881
Source father
● Household
· direct · ~0.92
Father
George Schmidt
b. ~1873
Source father
● Household
· direct · ~0.92
Father
John Schmidt
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Ida Schmidt
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Nellie Schmidt
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Rebecca Schmidt
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arthur Schmidt
Son · 1940 · age 25 · b. ~1915 · Illinois
★ You are viewing this record
Sibling
Oliver Schmidt
Sibling · 1940 · age 21
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 — Monroe-County, Illinois
Open full size
1940 US Federal Census — Monroe-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00859-00259)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur L. Guebert | 38 | Head | Farmer | Illinois |
| 2 | Emma L. Guebert | 32 | Wife | — | Illinois |
| 3 | Vernon Guebert | 6 | Son | — | Illinois |
| 4 | Arroll Guebert | 2 | Son | — | Illinois |
| 5 | John A. R. Schmidt | 66 | Head | Farmer | Illinois |
| 6 | Rebecca Schmidt | 59 | Wife | — | Illinois |
| 7 | Arthur Schmidt THIS PERSON | 25 | Son | Laborer | Illinois |
| 8 | Oliver Schmidt | 21 | Son | Laborer | Illinois |
| 9 | William Schmieg | 36 | Head | Laborer | Illinois |
| 10 | Elmora A. Schmieg | 30 | Wife | — | Illinois |
| 11 | Wallace W. Schmieg | 13 | Son | — | Illinois |
| 12 | Milford A. Schmieg | 11 | Son | — | Illinois |
| 13 | Robert E. Schmieg | 8 | Son | — | Illinois |
| 14 | Betty Lou Schmieg | 4 | Daughter | — | Illinois |
| 15 | Theresa A. Knapp | 77 | Head | — | Illinois |
| 16 | Nick L. Knapp | 54 | Son | Laborer | Illinois |
| 17 | Louis A. Wortman | 66 | Head | — | Illinois |
| 18 | Rosa A. Wortman | 59 | Wife | — | Illinois |
| 19 | Viola M. Wortman | 34 | Daughter | Housework | Illinois |
| 20 | Tillie D. Wortman | 31 | Daughter | — | Illinois |
| 21 | John A. Mosbacher | 79 | Head | Farmer | Illinois |
| 22 | Anna Mosbacher | 57 | Wife | — | Illinois |
| 23 | Alvin H. Mosbacher | 26 | Son | Laborer | Illinois |
| 24 | Elmer W. Mosbacher | 23 | Son | Laborer | Illinois |
| 25 | William P. Sr. Schanning | 56 | Head | Farmer | Illinois |
| 26 | Jessie Schanning | 55 | Wife | — | Illinois |
| 27 | Walter Schanning | 24 | Son | Farmer | Illinois |
| 28 | Ester Schanning | 27 | Daughter-in-law | — | Illinois |
| 29 | Elsie Schanning | 20 | Daughter | — | Illinois |
| 30 | Arlyn Schanning | 1 | Granddaughter | — | Illinois |
| 31 | Philip A. Stahlchmidt | 76 | Head | Farmer | Illinois |
| 32 | Mary A. Stahlchmidt | 75 | Wife | — | Illinois |
| 33 | Sylvester Stahlchmidt | 46 | Son | Farmer | Illinois |
| 34 | Caroline Stahlchmidt | 45 | Daughter | — | Illinois |
| 35 | Ben W. Holtenhoff | 38 | Head | Farmer | Illinois |
| 36 | Martha Holtenhoff | 40 | Wife | — | Illinois |
| 37 | Robert Holtenhoff | 11 | Son | — | Illinois |
| 38 | Frank A. Novak | 35 | Head | Farmer | Illinois |
| 39 | Arlena Novak | 31 | Wife | — | Illinois |
| 40 | Lucille Novak | 2 | Daughter | — | Illinois |
Pedigree Summary
Arthur + 1 sibling
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)