DS
Dorothy Schmidt — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Dorothy Schmidt across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Fred & Clara — first a spouse (b.~1902), then head of a 3-person household.
Age 38
b. ~1902
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Schmidt |
| Given Name | Dorothy |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1902 |
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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Charles Schmidt | Head | — | 35 | ~1905 |
| John Schmidt | Son | — | 14 | ~1926 |
| Dorothy Schmidt | Spouse | — | 38 | ~1902 |
Census Appearances
1910
Cook, Illinois
Daughter, age 8
Cook, Illinois · implied b. ~1902 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Daughter, age 17
Cook, Illinois · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Other, age 28
Cook, Illinois · implied b. ~1902 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Dorothy R |
| Relationship to Head | Daughter-in-law |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Spouse, age 38
Cook-County, Illinois · implied b. ~1902 — 3 household members
| Surname | Schmidt |
| Given Name | Dorothy |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Industry | 0 |
| 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 Dorothy Schmidt across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Fred Schmidt (~0.92 confidence) and mother Clara Schmidt (~0.92 confidence) and mother Clara Schmidt (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Schmidt
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Clara Schmidt
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Clara Schmidt
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Schmidt
Spouse · 1940 · age 38 · b. ~1902 · 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 — 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-t0627-01009-00734)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lillie A. Coyle | 37 | Head | Clerk | Illinois |
| 42 | Franz Weck | 46 | Head | Salesman | Michigan |
| 43 | Joyce Weck | 44 | Wife | — | Michigan |
| 44 | Lucile R. Flint | 39 | Head | Typist | Missouri |
| 45 | Bruce Wolter | 42 | Head | Salesman | Illinois |
| 46 | John R. Wolter | 40 | Partner | Salesman | Illinois |
| 47 | Pearl Doty | 57 | Head | Attorney | Michigan |
| 48 | Lloyd Loar | 48 | Head | Instructor Engineer | Illinois |
| 49 | Bertha Loar | 35 | Wife | — | Iowa |
| 50 | Kafra Case | 47 | Head | Laboratory Technician | Michigan |
| 51 | Margaret Case | 21 | Daughter | Stenographer | Illinois |
| 52 | Gene Hudnuck | 32 | Head | Supervisor | Illinois |
| 53 | John J. Commons | 62 | Head | Advertising Manager | Iowa |
| 54 | Ruth Commons | 58 | Wife | — | Indiana |
| 55 | Thelma L. Olsen | 38 | Head | Stenographer | Iowa |
| 56 | Helen Olsen | 65 | Mother | — | Iowa |
| 57 | E. M. Dollarhide | 39 | Head | Advisor | Missouri |
| 58 | Charles Schmidt | 35 | Head | Owner | Illinois |
| 59 | Dorothy Schmidt THIS PERSON | 38 | Wife | — | Illinois |
| 60 | John Schmidt | 14 | Son | — | Illinois |
| 61 | Florence S. Winship | 36 | Head | Operator | Illinois |
| 62 | Carl Krum | 44 | Head | Janitor | Germany |
| 63 | Alma Krum | 46 | Wife | — | Germany |
| 64 | Otto Luck | 46 | Lodger | Janitor Assistant | Germany |
| 65 | Marjorie L. Kennard | 28 | Head | Stenographer | Indiana |
| 66 | Janice Kennard | 30 | Partner | Typist | Indiana |
| 67 | Geo. A. Ward | 45 | Head | Broker | Tennessee |
| 68 | Marie Ward | 41 | Wife | — | Virginia |
| 69 | Edgar M. Ball | 59 | Head | Owner | Wisconsin |
| 70 | C. E. Jr. Hoy | 31 | Head | Lawyer | Illinois |
| 71 | Ruth Hoy | 26 | Wife | — | Ohio |
| 72 | John Rosen | 54 | Head | Salesman | Sweden |
| 73 | Florence Rosen | 40 | Wife | Secretary | Oregon |
| 74 | Martin L. Koether | 39 | Head | Salesman | Indiana |
| 75 | Anna Koether | 36 | Wife | Saleswoman | Indiana |
| 76 | Alexander Pappe | 40 | Head | Owner | Michigan |
| 77 | Luciele Pappe | 37 | Wife | — | Illinois |
| 78 | Alexander G. Pappe | 13 | Son | — | Illinois |
| 79 | M. A. Olson | 38 | Head | Secretary | Illinois |
| 80 | Ida Olson | 72 | Mother | — | Sweden |
Pedigree Summary
Dorothy
Gen 1 · 3 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)