JG
John Green — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Green across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Mary — first a head (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Green |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | street car conductor |
| Industry | street car line |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1600 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Street Car Conductor |
| Township / Ward | Chicago City |
| 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 John | Age | Birth yr |
|---|---|---|---|---|
| Joyce Green | Daughter | — | ~1940 | |
| Sharon Green | Daughter | — | 2 | ~1938 |
| John Green | Head | — | 28 | ~1912 |
| Gertrude Green | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Cook, Illinois
Son, age 8
Cook, Illinois · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Green |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Lithuania |
| Mother's Birthplace | Lithuania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Son, age 18
Cook, Illinois · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Greene |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Lithuania |
| Mother's Birthplace | Lithuania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 28
Cook-County, Illinois · implied b. ~1912 — 4 household members
| Surname | Green |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | street car conductor |
| Industry | street car line |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1600 |
| Highest Grade | H 1 |
| 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 Green across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Green (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Green
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Green
Head · 1940 · age 28 · b. ~1912 · 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-t0627-01016-00417)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Donald Link | 2 | son | — | Illinois |
| 42 | Maurice Van Dyke | 44 | Head | Electrician | Wisconsin |
| 43 | Esther Van Dyke | 40 | wife | — | Wisconsin |
| 44 | Theodore Palace | 26 | head | Grocery Store | Wisconsin |
| 45 | Alba Palace | 40 | wife | — | Wisconsin |
| 46 | James Myer | 32 | head | Glass Polisher | Illinois |
| 47 | Helen Myer | 21 | wife | — | Illinois |
| 48 | Violet Myer | 10 | daughter | — | Illinois |
| 49 | Donald Klemp | 12 | lodger | — | Illinois |
| 50 | Sylvester Kashinski | 24 | head | Steel Foreman | Illinois |
| 51 | Camille Kashinski | 23 | wife | — | Illinois |
| 52 | Raymond Kashinski | 0 | son | — | Illinois |
| 53 | Carl H. Jaenke | 57 | head | Chief Engineer | Illinois |
| 54 | Caroline Jaenke | 55 | wife | — | Illinois |
| 55 | Elise Jaenke | 23 | daughter | Stenographer | Illinois |
| 56 | Carl E. Jaenke | 21 | son | Fireman | Illinois |
| 57 | Frank H. Jaenke | 16 | son | — | Illinois |
| 58 | Michael Petrovsky | 48 | head | Plasterer | Illinois |
| 59 | Julia Petrovsky | 49 | wife | — | Illinois |
| 60 | John Green THIS PERSON | 28 | head | Street Car Conductor | Illinois |
| 61 | Gertrude Green | 28 | wife | — | Illinois |
| 62 | Sharon Green | 2 | daughter | — | Illinois |
| 63 | Joyce Green | 0 | daughter | — | Illinois |
| 64 | Arthur Greenwald | 32 | head | Upholsterer | Illinois |
| 65 | Adell Greenwald | 33 | wife | — | Illinois |
| 66 | Paul Greenwald | 4 | son | — | Illinois |
| 67 | Amelia Nickel | 53 | mother-in-law | — | Germany |
| 68 | William Nickel | 28 | brother-in-law | Wood Worker | Illinois |
| 69 | Henry Nickel | 21 | brother-in-law | Transformer Engineer | Illinois |
| 70 | Alice Kashinski | 22 | cousin | Clerk | Illinois |
| 71 | Constantine Tokar | 67 | head | — | Greece |
| 72 | Fannie Tokar | 58 | wife | — | Greece |
| 73 | Effie Tokar | 27 | daughter | Stenographer | Illinois |
| 74 | George Tokar | 25 | son | Furrier | Illinois |
| 75 | Nester Tokar | 24 | son | Furrier | Illinois |
| 76 | Paul Aetly | 57 | head | Shoemaker | Germany |
| 77 | Rose Aetly | 57 | wife | — | Germany |
| 78 | Fred Koch | 35 | head | Auditor | Illinois |
| 79 | Helen Koch | 35 | wife | — | Illinois |
| 80 | Fred Jr. Koch | 12 | son | — | Illinois |
Related Census Records
Pedigree Summary
John
Gen 1 · 1 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)