MS
Margaret Schmidt — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Margaret Schmidt across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents George & George — first a daughter (b.~1904), then head of a 6-person household.
Age 36
b. ~1904
Female
Daughter
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Schmidt |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1904 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Hanna Oliver | Head | — | 72 | ~1868 |
| Earl Oliver | Other | — | 51 | ~1889 |
| Isabella Oliver | Daughter | — | 44 | ~1896 |
| Margaret Schmidt | Daughter | — | 36 | ~1904 |
| George Oliver | Son | — | 41 | ~1899 |
| John Schmidt | Other | — | 41 | ~1899 |
Census Appearances
1920
Cook, Illinois
Daughter, age 15
Cook, Illinois · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 26
Cook, Illinois · implied b. ~1904 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Germany |
| Occupation | Bookkeeper |
| Industry | Printing |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 36
Cook-County, Illinois · implied b. ~1904 — 6 household members
| Surname | Schmidt |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Margaret Schmidt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Schmidt (~0.92 confidence) and father George Schmidt (~0.92 confidence) and mother Hanna Oliver (~0.92 confidence) and mother Rose Schmidt (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Schmidt
b. ~1872
Source father
● Household
· direct · ~0.92
Father
George Schmidt
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Hanna Oliver
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Rose Schmidt
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Schmidt
Daughter · 1940 · age 36 · b. ~1904 · Illinois
★ You are viewing this record
Sibling
George Oliver
Sibling · 1940 · age 41
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabella Oliver
Sibling · 1940 · age 44
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-t0627-00947-00619)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jean Johnson | 5 | Daughter | — | Illinois |
| 2 | Arthur Johnson | 0 | Son | — | Illinois |
| 3 | Hanna Oliver | 72 | Head | — | Ireland-Northern |
| 4 | Earl Oliver | 51 | Son-in-law | Warehouse Foreman | Illinois |
| 5 | Isabella Oliver | 44 | Daughter | Mail Clerk | Illinois |
| 6 | George Oliver | 41 | Son | Freight Handler | Illinois |
| 7 | John Schmidt | 41 | Son-in-law | Police Officer | Illinois |
| 8 | Margaret Schmidt THIS PERSON | 36 | Daughter | — | Illinois |
| 9 | Arthur Wunderlich | 36 | Head | Motorman | Texas |
| 10 | Ruth Wunderlich | 30 | Wife | — | Illinois |
| 11 | Theodore Strieter | 41 | Head | Mechanical | Michigan |
| 12 | Edna Strieter | 36 | Wife | — | Illinois |
| 13 | Robert Strieter | 6 | Son | — | Illinois |
| 14 | Berthold Doenicke | 71 | Father-in-law | — | Germany |
| 15 | Anna Doenicke | 71 | Mother-in-law | — | Germany |
| 16 | Florence Thomsy | 43 | Head | Civil Engineer | Illinois |
| 17 | Myrtle Thomsy | 46 | Wife | — | Illinois |
| 18 | Robert Thomsy | 22 | Son | Service Station Work | Illinois |
| 19 | Richard Thomsy | 19 | Son | — | Illinois |
| 20 | Jack Thomsy | 16 | Son | — | Illinois |
| 21 | Leonard Hedlund | 30 | Head | Construction Laborer | Illinois |
| 22 | Ruth Hedlund | 29 | Wife | — | Illinois |
| 23 | Ronald Hedlund | 6 | Son | — | Illinois |
| 24 | Charles Hedlund | 2 | Son | — | Illinois |
| 25 | Richard Hedlund | 42 | Head | Carpenter | Illinois |
| 26 | Georgia Hedlund | 41 | Wife | — | Ohio |
| 27 | William Hedlund | 17 | Son | — | Ohio |
| 28 | Jane Hedlund | 15 | Daughter | — | Ohio |
| 29 | Roy Westcott | 35 | Head | Manager Motor | Illinois |
| 30 | Dorothy Westcott | 35 | Wife | Office Work | Illinois |
| 31 | Richard Westcott | 9 | Son | — | Illinois |
| 32 | Louise Westcott | 7 | Daughter | — | Illinois |
| 33 | Elizabeth Fields | 74 | Grandmother | — | Illinois |
| 34 | Catherine Westcott | 63 | Mother | — | Illinois |
| 35 | Daniel Dennehy | 41 | Head | Street Car Cond. | Ireland-Free St |
| 36 | Helen Dennehy | 41 | Wife | — | Ireland-Free St |
| 37 | John Dennehy | 21 | Son | — | Illinois |
| 38 | Daniel Dennehy | 20 | Son | — | Illinois |
| 39 | William Dennehy | 16 | Son | — | Illinois |
| 40 | Margaret Dennehy | 11 | Daughter | — | Illinois |
Pedigree Summary
Margaret + 2 siblings
Gen 1 · 4 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)