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John Schmidt — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Schmidt across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents John & Albert — first a son (b.~1914), then head of a 6-person household.
Age 26
b. ~1914
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Schmidt |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Roofer |
| Industry | Building Bros. |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1190 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Roofer |
| Township / Ward | Chicago |
| Est. Birth Year | ~1914 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Mary Refeli | Daughter | — | 31 | ~1909 |
| Mary Schmidt | Head | — | 44 | ~1896 |
| Rose Refeli | Other | — | 10 | ~1930 |
| Julia Refeli | Other | — | 18 | ~1922 |
| Conrad Refeli | Other | — | 44 | ~1896 |
| John Schmidt | Son | — | 26 | ~1914 |
Census Appearances
1920
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Italy |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 16
Cook, Illinois · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Poland |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 26
Cook-County, Illinois · implied b. ~1914 — 6 household members
| Surname | Schmidt |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Roofer |
| Industry | Building Bros. |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1190 |
| 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 John Schmidt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Schmidt (~0.92 confidence) and father Albert Schmidt (~0.92 confidence) and mother Caroline Schmidt (~0.92 confidence) and mother Ida Schmidt (~0.92 confidence) and mother Mary Schmidt (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Schmidt
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Albert Schmidt
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Caroline Schmidt
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Ida Schmidt
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mary Schmidt
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Schmidt
Son · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
Mary Refeli
Sibling · 1940 · age 31
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-t0627-00944-00739)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Stella York | 17 | daughter | Beauty Operator | Illinois |
| 42 | Jerome York | 12 | son | — | Illinois |
| 43 | Sophie Pasewick | 23 | daughter | Beauty Operator | Illinois |
| 44 | Marilyn Pasewick | 3 | granddaughter | — | Illinois |
| 45 | Mary Schmidt | 44 | Head | — | Austria |
| 46 | John Schmidt THIS PERSON | 26 | son | Roofer | Illinois |
| 47 | Conrad Refeli | 44 | cousin | Printer | Austria |
| 48 | Mary Refeli | 31 | daughter | Solder | Austria |
| 49 | Julia Refeli | 18 | granddaughter | — | Illinois |
| 50 | Rose Mary Refeli | 10 | granddaughter | — | Illinois |
| 51 | Mary Baker | 70 | Head | — | Italy |
| 52 | John Baker | 35 | son | Clerk | Illinois |
| 53 | Frank Silva | 55 | Head | Laborer | New Mexico |
| 54 | Genva Silva | 51 | Wife | — | New Mexico |
| 55 | Eloy Silva | 24 | son | Laborer | New Mexico |
| 56 | Arthur Silva | 17 | son | — | Montana |
| 57 | Mary Silva | 13 | daughter | — | Montana |
| 58 | Dorothy Silva | 12 | daughter | — | Illinois |
| 59 | Georgina Silva | 10 | daughter | — | Illinois |
| 60 | Sammy Silva | 7 | son | — | Illinois |
| 61 | Junior F. Silva | 4 | son | — | Illinois |
| 62 | Edward Hauser | 57 | Head | Foreman | Illinois |
| 63 | Anna Hauser | 53 | Wife | — | Illinois |
| 64 | Earl Hauser | 24 | son | Laborer | Illinois |
| 65 | Robert Hauser | 22 | son | Laborer | Illinois |
| 66 | Anna Hauser | 20 | daughter | Clerk | Illinois |
| 67 | Laverne Hauser | 17 | daughter | — | Illinois |
| 68 | Gertrude Richter | 43 | Head | — | Illinois |
| 69 | Arlene Richter | 12 | daughter | — | Illinois |
| 70 | Raymond Richter | 11 | son | — | Illinois |
| 71 | Delores Richter | 8 | daughter | — | Illinois |
| 72 | Lewis Halper | 31 | Head | Shipping Clerk | Illinois |
| 73 | Katherine Halper | 27 | Wife | — | Illinois |
| 74 | George Halper | 3 | son | — | Illinois |
| 75 | Isabelle Kanel | 65 | Head | Clerk | Lithuania |
| 76 | John Reboch | 53 | Lodger | — | Lithuania |
| 77 | John Jokubauskas | 59 | Lodger | — | Lithuania |
| 78 | Julia Herbert | 35 | Head | Waitress | Lithuania |
| 79 | Louise Herbert | 10 | daughter | — | Illinois |
| 80 | John Piazza | 54 | Head | Janitor | Italy |
Pedigree Summary
John + 1 sibling
Gen 1 · 5 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)