JR
John Roth — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Roth across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Roth |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Park Ridge City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Park Ridge City |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| Elvina Roth | Spouse | — | 45 | ~1895 |
| John Roth | Son | — | 21 | ~1919 |
| John Roth | Head | — | 48 | ~1892 |
| George Roth | Son | — | 19 | ~1921 |
Census Appearances
1920
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roth |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 11
Cook, Illinois · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roth |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 21
Cook-County, Illinois · implied b. ~1919 — 4 household members
| Surname | Roth |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Park Ridge City |
| 1935 Residence (County) | Cook |
| Highest Grade | Hs 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 Roth across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Roth (~0.92 confidence) and father John Roth (~0.92 confidence) and mother Elvina Roth (~0.92 confidence) and father John Roth (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Roth
b. ~1892
Source father
● Household
· direct · ~0.92
Father
John Roth
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Elvina Roth
b. ~1895
Source mother
● Household
· direct · ~0.92
Father
John Roth
b. ~1897
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Roth
Son · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
George Roth
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-t0627-00780-00458)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jean Cook | 3 | Daughter | — | Illinois |
| 2 | Edward E. Nangle | 47 | Head | Salesman | Illinois |
| 3 | Margaret F. Nangle | 47 | Wife | — | Illinois |
| 4 | Edward E. Jr. Nangle | 21 | Son | Assembler | Illinois |
| 5 | Franklin Johnson | 40 | Head | Electrical Inspector | Illinois |
| 6 | Erma Johnson | 36 | Wife | — | Illinois |
| 7 | Carolyn Johnson | 11 | Daughter | — | Illinois |
| 8 | Bernard Johnson | 7 | Son | — | Illinois |
| 9 | Dayton Ritter | 79 | Brother-in-law | — | Indiana |
| 10 | John E. Roth | 48 | Head | Caretaker | Illinois |
| 11 | Elvina E. Roth | 45 | Wife | — | Illinois |
| 12 | John E. Roth THIS PERSON | 21 | Son | — | Illinois |
| 13 | George Roth | 19 | Son | — | Illinois |
| 14 | Bayle Weaver | 51 | Head | Information Clerk | Illinois |
| 15 | Ethel G. Weaver | 52 | Wife | — | Illinois |
| 16 | Cora L. Weaver | 74 | Mother | — | Illinois |
| 17 | Frank Sr. Pinderak | 64 | Head | Linotype Machinist | Illinois |
| 18 | Katherine Pinderak | 63 | Wife | — | Illinois |
| 19 | Frank Jr. Pinderak | 30 | Son | Service Man | Illinois |
| 20 | Angela J. Pinderak | 21 | Daughter | — | Illinois |
| 21 | Donald Mckinistry | 36 | Head | Engineering Asst | Canada-Eng |
| 22 | Lina Mckinistry | 35 | Wife | — | Sweden |
| 23 | Donald Jr. Mckinistry | 10 | Son | — | Illinois |
| 24 | John Mckinistry | 6 | Son | — | Illinois |
| 25 | Ellen Johnson | 58 | Mother-in-law | — | Sweden |
| 26 | Roy Stanke | 37 | Head | Compressor Operator | Illinois |
| 27 | Pearl Stanke | 32 | Wife | — | Ohio |
| 28 | Delores Stanke | 10 | Daughter | — | Illinois |
| 29 | Patricia Stanke | 8 | Daughter | — | Illinois |
| 30 | Mary Bonisowski | 75 | Mother-in-law | — | Poland |
| 31 | William Bentler | 38 | Head | Carpenter | Germany |
| 32 | Millie Bentler | 37 | Wife | — | Germany |
| 33 | William Bentler | 8 | Son | — | Illinois |
| 34 | Fred Bentler | 7 | Son | — | Illinois |
| 35 | Edwin A. Isaacs | 58 | Head | General Repair | Wisconsin |
| 36 | Anna Isaacs | 49 | Wife | — | Illinois |
| 37 | Barbara Isaacs | 23 | Daughter | Filing Clerk | Illinois |
| 38 | Gilbert E. Isaacs | 20 | Son | Cab Driver | Illinois |
| 39 | Wesley J. Isaacs | 15 | Son | — | Illinois |
| 40 | Jesse Johnson | 60 | Lodger | Odd Jobs | Germany |
Pedigree Summary
John + 1 sibling
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)