RS
Robert Schmidt — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Robert Schmidt across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 13-person household.
Age 15
b. ~1925
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Schmidt |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1925 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Edward Schmidt | Head | — | 52 | ~1888 |
| Violet Schmidt | Daughter | — | 9 | ~1931 |
| Evelyn Schmidt | Daughter | — | 17 | ~1923 |
| Charles Schmidt | Son | — | 3 | ~1937 |
| Emily Schmidt | Daughter | — | 19 | ~1921 |
| Ruth Schmidt | Daughter | — | 14 | ~1926 |
| Harry Schmidt | Son | — | 18 | ~1922 |
| Norbert Schmidt | Son | — | 11 | ~1929 |
| Robert Schmidt | Son | — | 15 | ~1925 |
| Edward Schmidt | Son | — | 12 | ~1928 |
| Eric Schmidt | Son | — | 19 | ~1921 |
| Anna Schmidt | Spouse | — | 49 | ~1891 |
| Gerald Schmidt | Son | — | 8 | ~1932 |
Census Appearances
1930
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1925 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 15
Cook-County, Illinois · implied b. ~1925 — 13 household members
| Surname | Schmidt |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | No 6 |
| 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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Schmidt
Son · 1940 · age 15 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Gerald Schmidt
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Violet Schmidt
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Schmidt
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Schmidt
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Schmidt
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Schmidt
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norbert Schmidt
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Schmidt
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emily Schmidt
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eric Schmidt
Sibling · 1940 · age 19
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00944-00046)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary G. Surocki | 73 | Head | — | Poland |
| 2 | Lillian M. Surocki | 50 | Daughter | Saleswoman | Illinois |
| 3 | John Krawczyk | 53 | Head | Carpenter | Poland |
| 4 | Sally S. Krawczyk | 48 | Wife | — | Poland |
| 5 | Henry C. Krawczyk | 16 | Son | — | Illinois |
| 6 | Lucy Krawczyk | 11 | Daughter | — | Illinois |
| 7 | Clara Krawczyk | 9 | Daughter | — | Illinois |
| 8 | Lawrence Krawczyk | 80 | Father | — | Poland |
| 9 | Martha Mempa | 61 | Head | — | Illinois |
| 10 | Alexander Jeglinski | 29 | Head | Bench Hand | Connecticut |
| 11 | Alice J. Jeglinski | 26 | Wife | — | Nebraska |
| 12 | Lorraine A. Jeglinski | 6 | Daughter | — | Illinois |
| 13 | Sylvia R. Jeglinski | 3 | Daughter | — | Illinois |
| 14 | Constance S. Jeglinski | 1 | Daughter | — | Illinois |
| 15 | Ann Jakubowski | 43 | Head | Seamstress | Poland |
| 16 | Lucille B. Jakubowski | 21 | Daughter | Seamstress | Illinois |
| 17 | Blanche A. Jakubowski | 17 | Daughter | Packer | Illinois |
| 18 | Laura J. Jakubowski | 16 | Daughter | — | Illinois |
| 19 | Sylvia M. Jakubowski | 14 | Daughter | — | Illinois |
| 20 | Frank Nallymitrowicz | 59 | Head | Boiler Tender | Poland |
| 21 | Rosalie Nallymitrowicz | 56 | Wife | — | Poland |
| 22 | Leo Nallymitrowicz | 24 | Son | Mill Operator | Illinois |
| 23 | Irene Nallymitrowicz | 19 | Daughter | Laundry Worker | Illinois |
| 24 | Edward Schmidt | 52 | Head | Laborer | Germany |
| 25 | Anna Schmidt | 49 | Wife | — | Germany |
| 26 | Eric W. Schmidt | 19 | Son | Laborer | Illinois |
| 27 | Harry Schmidt | 18 | Son | Laborer | Illinois |
| 28 | Emily Schmidt | 19 | Daughter | Packer | Illinois |
| 29 | Evelyn Schmidt | 17 | Daughter | — | Illinois |
| 30 | Robert Schmidt THIS PERSON | 15 | Son | — | Illinois |
| 31 | Ruth Schmidt | 14 | Daughter | — | Illinois |
| 32 | Edward Schmidt | 12 | Son | — | Illinois |
| 33 | Norbert Schmidt | 11 | Son | — | Illinois |
| 34 | Violet W. Schmidt | 9 | Daughter | — | Illinois |
| 35 | Gerald Schmidt | 8 | Son | — | Illinois |
| 36 | Charles Schmidt | 3 | Son | — | Illinois |
| 37 | Emil J. Kaitchuck | 59 | Head | — | Illinois |
| 38 | Charlotte M. Kaitchuck | 52 | Wife | — | Illinois |
| 39 | Florence D. Kaitchuck | 21 | Daughter | Telephone Operator | South Dakota |
| 40 | Lucy Schuman | 53 | Wife | — | 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)