RS
Robert Schmidt — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kendall-County, Illinois
Our Model Tree links this Robert Schmidt across the 1920, 1930 and 1940 US Censuses in Kendall-County, Illinois (XGBoost, ~Confirmed), with identified parents J & J — first a son (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kendall-County, Illinois |
| Surname | Schmidt |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Oswego |
| 1935 Residence (County) | Kendall |
| Additional Details | |
| Occupation | Laborer |
| Industry | Steel Mfg Co |
| Class of Worker | PW |
| Hours Worked | 5 |
| Income (1939) | 468 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Oswego |
| Est. Birth Year | ~1912 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Arthur Schmidt | Son | — | 21 | ~1919 |
| Emma Schmidt | Spouse | — | 58 | ~1882 |
| Robert Schmidt | Son | — | 28 | ~1912 |
| John Schmidt | Head | — | 60 | ~1880 |
Census Appearances
1920
Kendall, Illinois
Son, age 7
Kendall, Illinois · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | Finland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Kendall, Illinois
Son, age 18
Kendall, Illinois · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | Finland |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Kendall-County, Illinois
Son, age 28
Kendall-County, Illinois · implied b. ~1912 — 4 household members
| Surname | Schmidt |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Oswego |
| 1935 Residence (County) | Kendall |
| Occupation | Laborer |
| Industry | Steel Mfg Co |
| Class of Worker | PW |
| Hours Worked | 5 |
| Income (1939) | 468 |
| 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 Robert Schmidt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father J Schmidt (~0.92 confidence) and father J Schmidt (~0.92 confidence) and father John Schmidt (~0.92 confidence) and mother Emma Schmidt (~0.92 confidence) and mother Emma Schmidt (~0.92 confidence) and mother Emma Schmidt (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
J Schmidt
b. ~1878
Source father
● Household
· direct · ~0.92
Father
J Schmidt
b. ~1880
Source father
● Household
· direct · ~0.92
Father
John Schmidt
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Emma Schmidt
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Emma Schmidt
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Emma Schmidt
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Schmidt
Son · 1940 · age 28 · b. ~1912 · Illinois
★ You are viewing this record
Sibling
Arthur 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 — Kendall-County, Illinois
Open full size
1940 US Federal Census — Kendall-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00825-00260)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marion Robert Jr. Edwards | 9 | Son | — | Illinois |
| 42 | Dorothy Edwards | 7 | Daughter | — | Illinois |
| 43 | Deloris Edwards | 5 | Daughter | — | Illinois |
| 44 | Fred G. Carney | 65 | Head | — | Illinois |
| 45 | Archie Runkle | 54 | Head | Carpenter | Illinois |
| 46 | Louise Runkle | 52 | Wife | — | Minnesota |
| 47 | Charles Reid | 62 | Head | Engineer | Illinois |
| 48 | Minnie Reid | 43 | Wife | — | Illinois |
| 49 | Elmer Drainer | 64 | Head | Laborer | New York |
| 50 | Frances Drainer | 56 | Wife | — | Nebraska |
| 51 | Benjamin Tiffy | 48 | Head | Watchman | Maryland |
| 52 | Margaret Tiffy | 45 | Wife | — | Illinois |
| 53 | Benny Tiffy | 20 | Son | Truck Driver | Illinois |
| 54 | Glen Tiffy | 13 | Son | — | Illinois |
| 55 | Ray Abens | 30 | Son-in-law | Truck Driver | Illinois |
| 56 | Alice Abens | 25 | Wife | — | Illinois |
| 57 | Raymond Timmons | 54 | Boarder | Foreman | Illinois |
| 58 | John Schmidt | 60 | Head | Laborer | Germany |
| 59 | Emma Schmidt | 58 | Wife | — | Illinois |
| 60 | Robert Schmidt THIS PERSON | 28 | Son | Laborer | Illinois |
| 61 | Arthur Schmidt | 21 | Son | Laborer | Illinois |
| 62 | Wallis Manning | 55 | Head | Woodworker | Illinois |
| 63 | Evelyn Manning | 52 | Wife | — | Illinois |
| 64 | Ruth Weidert | 23 | Lodger | — | Canada |
| 65 | Edward Weidert | 25 | Lodger | Laborer | Illinois |
| 66 | I. May Rogerson | 41 | Head | Driver | Canada |
| 67 | Mildred Rogerson | 36 | Wife | — | Illinois |
| 68 | Jane Rogerson | 15 | Daughter | — | Illinois |
| 69 | Robert Rogerson | 13 | Son | — | Illinois |
| 70 | Marilyn Rogerson | 11 | Daughter | — | Illinois |
| 71 | David Rogerson | 3 | Son | — | Illinois |
| 72 | Hannah Davis | 90 | Mother | — | Michigan |
| 73 | Raymond Underhill | 50 | Head | Civil Engineer | Massachusetts |
| 74 | Vera Underhill | 40 | Wife | — | Illinois |
| 75 | H. O. Suckow | 74 | Head | — | Illinois |
| 76 | Marvin Marquardt | 33 | Head | Teacher | Minnesota |
| 77 | Marjorie Marquardt | 29 | Wife | Secretary | Illinois |
| 78 | Harold Seidelman | 25 | Head | Mechanic | Illinois |
| 79 | Laura Seidelman | 19 | Wife | — | Iowa |
Pedigree Summary
Robert + 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)