AS
Arthur Schmidt — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Clair-County, Illinois
Our Model Tree links this Arthur Schmidt across the 1920, 1930 and 1940 US Censuses in St.-Clair-County, Illinois (XGBoost, ~Confirmed), with identified parents August & Elizabeth — first a head (b.~1897), then head of a 6-person household.
Age 43
b. ~1897
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Illinois |
| Surname | Schmidt |
| Given Name | Arthur |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Shiloh Valley |
| 1935 Residence (County) | St. Clair |
| Additional Details | |
| Occupation | Proprietor |
| Industry | Tavern |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 1567 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Proprietor |
| Township / Ward | Shiloh Valley |
| Est. Birth Year | ~1897 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Arthur | Age | Birth yr |
|---|---|---|---|---|
| Arila Schmidt | Daughter | — | 16 | ~1924 |
| Mary Frankenstein | Other | — | 22 | ~1918 |
| Janell Schmidt | Daughter | — | 17 | ~1923 |
| Melba Hartze | Other | — | 23 | ~1917 |
| Dora Schmidt | Spouse | — | 42 | ~1898 |
| Arthur Schmidt | Head | — | 43 | ~1897 |
Census Appearances
1920
St Clair, …
Son, age 22
St Clair, Illinois · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Arthur |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Occupation | Clerk |
| Industry | Swift & Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
St Clair, …
Head, age 32
St Clair, Illinois · implied b. ~1898 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Arthur |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Gen. Clerk |
| Industry | Steam R.R. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 27.00 |
| Veteran | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
St.-Clair-County, Illinois
Head, age 43
St.-Clair-County, Illinois · implied b. ~1897 — 6 household members
| Surname | Schmidt |
| Given Name | Arthur |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Shiloh Valley |
| 1935 Residence (County) | St. Clair |
| Occupation | Proprietor |
| Industry | Tavern |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 1567 |
| Highest Grade | H-1 |
| 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 August Schmidt (~0.92 confidence) and mother Elizabeth Schmidt (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
August Schmidt
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Schmidt
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arthur Schmidt
Head · 1940 · age 43 · b. ~1897 · 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 — St.-Clair-County, Illinois
Open full size
1940 US Federal Census — St.-Clair-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00882-00762)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis Schubert | 67 | Head | Farmer | Illinois |
| 2 | Sophia Schubert | 65 | Wife | — | Illinois |
| 3 | Carl Bechtoldt | 29 | Son-in-law | Mechanic | Illinois |
| 4 | Gladys Bechtoldt | 25 | Daughter | — | Illinois |
| 5 | Arthur Heck | 45 | Head | Farmer | Illinois |
| 6 | Thelda Heck | 39 | Wife | — | Illinois |
| 7 | Clifford Heck | 15 | Son | Helper On Farm | Illinois |
| 8 | Arnold Heck | 12 | Son | — | Illinois |
| 9 | Marie Heck | 14 | Daughter | — | Illinois |
| 10 | Joseph Lehr | 51 | Head | — | Germany |
| 11 | Anna E. Lehr | 51 | Wife | — | Illinois |
| 12 | Helen R. Lehr | 17 | Daughter | — | Illinois |
| 13 | George Lehr | 27 | Son | Farmer | Missouri |
| 14 | Doris Marie Lehr | 24 | Daughter-in-law | — | Illinois |
| 15 | Carol Jean Lehr | 5 | Granddaughter | — | Illinois |
| 16 | Joan M. Lehr | 3 | Granddaughter | — | Illinois |
| 17 | William Stortzum | 75 | Head | Farmer | Illinois |
| 18 | Ernest Stortzum | 76 | Brother | Farmer | Illinois |
| 19 | Mary Stortzum | 63 | Mother | — | Illinois |
| 20 | Christ Deutshman | 32 | Head | Farmer | Illinois |
| 21 | Catherine Deutshman | 31 | Wife | — | Illinois |
| 22 | Wanda Patterson | 20 | Head | — | Illinois |
| 23 | Elsie Patterson | 6 | Daughter | — | Illinois |
| 24 | Otto Patterson | 3 | Son | — | Illinois |
| 25 | Arthur Schmidt THIS PERSON | 43 | Head | Proprietor | Illinois |
| 26 | Dora Schmidt | 42 | Wife | Assistant | Illinois |
| 27 | Janell Schmidt | 17 | Daughter | — | Illinois |
| 28 | Arila Schmidt | 16 | Daughter | — | Illinois |
| 29 | Melba Hartze | 23 | Boarder | — | Illinois |
| 30 | Mary Frankenstein | 22 | Lodger | — | Missouri |
| 31 | John Knobeloch | 49 | Head | Farmer | Illinois |
| 32 | Ida Knobeloch | 45 | Wife | — | Illinois |
| 33 | Iona Knobeloch | 21 | Daughter | — | Illinois |
| 34 | Marie Knobeloch | 17 | Daughter | — | Illinois |
| 35 | Louis Dial | 39 | Hired man | Hired Man | Illinois |
| 36 | John Joseph Evans | 32 | Head | Laborer | Illinois |
| 37 | Bernice Evans | 31 | Wife | — | Illinois |
| 38 | John Joseph Jr. Evans | 2 | Son | — | Illinois |
| 39 | Juanita Evans | 1 | Daughter | — | Illinois |
Pedigree Summary
Arthur
Gen 1 · 2 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)