WS
Walter Schmidt — 1940 US Census Record
Model Tree available1940 United States Federal Census · Monroe-County, Illinois
Our Model Tree links this Walter Schmidt across the 1920, 1930 and 1940 US Censuses in Monroe-County, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Illinois |
| Surname | Schmidt |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Waterloo |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | hauling coal |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 420 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Truck Driver |
| Township / Ward | Waterloo |
| Est. Birth Year | ~1911 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Walter | Age | Birth yr |
|---|---|---|---|---|
| Walter Schmidt | Son | — | 29 | ~1911 |
| John Schmidt | Head | — | 67 | ~1873 |
| Mary Schmidt | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Monroe, Illinois
Son, age 9
Monroe, Illinois · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Monroe, Illinois
Son, age 19
Monroe, Illinois · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Day Work |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Monroe-County, Illinois
Son, age 29
Monroe-County, Illinois · implied b. ~1911 — 3 household members
| Surname | Schmidt |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Waterloo |
| 1935 Residence (County) | Monroe |
| Occupation | Truck Driver |
| Industry | hauling coal |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 420 |
| Highest Grade | H 4 |
| 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 Walter Schmidt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Schmidt (~0.92 confidence) and father John Schmidt (~0.92 confidence) and father John Schmidt (~0.92 confidence) and mother Mary Schmidt (~0.92 confidence) and mother Mary Schmidt (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Schmidt
b. ~1873
Source father
● Household
· direct · ~0.92
Father
John Schmidt
b. ~1873
Source father
● Household
· direct · ~0.92
Father
John Schmidt
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Mary Schmidt
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Mary Schmidt
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Walter Schmidt
Son · 1940 · age 29 · b. ~1911 · Illinois
★ You are viewing this record
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
39 people indexed on this census page (nara:1940:m-t0627-00859-00362)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Betty Strauss | 15 | daughter | — | Missouri |
| 2 | Conrad Rohmer | 40 | Head | Farmer | Illinois |
| 3 | Helen Rohmer | 29 | Wife | — | Illinois |
| 4 | Earl Rohmer | 9 | Son | — | Illinois |
| 5 | Ralph Rohmer | 5 | Son | — | Illinois |
| 6 | Albert Lich | 27 | Head | Farmer | Illinois |
| 7 | Hilda Lich | 27 | Wife | — | Illinois |
| 8 | Albert M. Gans | 31 | Head | Shell Agt | Illinois |
| 9 | Alice Gans | 36 | Wife | — | Kansas |
| 10 | John F. Schmidt | 67 | Head | — | Illinois |
| 11 | Mary Schmidt | 63 | Wife | — | Illinois |
| 12 | Walter Schmidt THIS PERSON | 29 | Son | Truck Driver | Illinois |
| 13 | Elmer Johanning | 31 | Head | Farmer | Illinois |
| 14 | Florence Johanning | 24 | Wife | — | Illinois |
| 15 | Maria Vogel | 47 | mother-in-law | — | Illinois |
| 16 | Caroline Rust | 73 | Head | — | Illinois |
| 17 | Charles Rust | 57 | Son | — | Illinois |
| 18 | Claude A. Janson | 63 | Head | Laborer | Illinois |
| 19 | Archibald Rohrwahl | 35 | Head | Lawyer | Illinois |
| 20 | Helene Rohrwahl | 34 | Wife | — | Illinois |
| 21 | Raoul A. Rohrwahl | 4 | daughter | — | Illinois |
| 22 | David L. Rohrwahl | 2 | Son | — | Illinois |
| 23 | Ruth H. Rohrwahl | 0 | daughter | — | Illinois |
| 24 | Herman H. Wessel | 46 | Head | Farmer | Illinois |
| 25 | Charlotte Wessel | 44 | Wife | — | Illinois |
| 26 | Harold Notter | 12 | nephew | — | Illinois |
| 27 | Paul Notter | 11 | nephew | — | Illinois |
| 28 | Herman W. Hartmann | 49 | Head | Farmer | Illinois |
| 29 | Mildred Hartmann | 38 | Wife | — | Illinois |
| 30 | Violet Hartmann | 11 | daughter | — | Illinois |
| 31 | Kenneth Hartmann | 3 | Son | — | Illinois |
| 32 | Alice Gredel | 35 | Hired Girl | Assistant | Illinois |
| 33 | F. A. Zuebold | 45 | Head | Insurance Agent | Illinois |
| 34 | Ethel Zuebold | 44 | Wife | — | Illinois |
| 35 | Frank Zuebold | 20 | Son | — | Illinois |
| 36 | Marianne Zuebold | 11 | daughter | — | Illinois |
| 37 | Alvin Mueller | 37 | Head | Truck Driver | Illinois |
| 38 | Vera Mueller | 29 | Wife | — | Missouri |
| 39 | Carol Ann Mueller | 2 | daughter | — | Missouri |
Pedigree Summary
Walter
Gen 1 · 5 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)