GT
George Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this George Thompson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents George & George — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Thompson |
| Given Name | George Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Store Clerk |
| Industry | Dept. Store |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 248 |
| Highest Grade | Hs 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Store Clerk |
| Township / Ward | Chicago |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| Mary Thompson | Daughter | — | 15 | ~1925 |
| Dolores Thompson | Daughter | — | 8 | ~1932 |
| George Thompson | Head | — | 49 | ~1891 |
| George Thompson | Son | — | 22 | ~1918 |
| Mary Thompson | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Cook, Illinois
Son, age 2
Cook, Illinois · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | George J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 12
Cook, Illinois · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | George Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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 22
Cook-County, Illinois · implied b. ~1918 — 5 household members
| Surname | Thompson |
| Given Name | George Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Store Clerk |
| Industry | Dept. Store |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 248 |
| Highest Grade | Hs 4 |
| 1935 Residence | Illinois |
| 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 George Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Thompson (~0.92 confidence) and father George Thompson (~0.92 confidence) and father George Thompson (~0.92 confidence) and mother Mary Thompson (~0.92 confidence) and mother Ruth Thompson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Thompson
b. ~1893
Source father
● Household
· direct · ~0.92
Father
George Thompson
b. ~1891
Source father
● Household
· direct · ~0.92
Father
George Thompson
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Mary Thompson
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Ruth Thompson
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
George Thompson
Son · 1940 · age 22 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
Dolores Thompson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Thompson
Sibling · 1940 · age 15
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-t0627-00932-00234)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dorothy Conlon | 43 | Wife | — | New York |
| 2 | Arthur Jr Conlon | 21 | Son | Truck Driver | Illinois |
| 3 | Dorothy Conlon | 20 | Daughter | Typist | Illinois |
| 4 | Mary Conlon | 19 | Daughter | Salesgirl | Illinois |
| 5 | John O'Brien | 54 | Head | Build Labor | Ireland |
| 6 | James T Mcmahon | 29 | Head | Steel Worker | Illinois |
| 7 | Virginia Mcmahon | 25 | Wife | — | Illinois |
| 8 | George Thompson | 49 | Head | Cigar Store Clerk | Illinois |
| 9 | Mary Thompson | 46 | Wife | — | Illinois |
| 10 | George Jr. Thompson THIS PERSON | 22 | Son | Store Clerk | Illinois |
| 11 | Mary Jane Thompson | 15 | Daughter | — | Illinois |
| 12 | Dolores Thompson | 8 | Daughter | — | Illinois |
| 13 | Lee Dornan | 25 | Head | Purchasing Agent | Illinois |
| 14 | Mary Dornan | 21 | Wife | — | Illinois |
| 15 | Robert Wright | 30 | Head | Labor Foreman | Illinois |
| 16 | Irene Wright | 27 | Wife | — | Illinois |
| 17 | David Wright | 3 | Son | — | Illinois |
| 18 | Katherine Mcginnis | 73 | Head | — | West Virginia |
| 19 | Howard Mcginnis | 49 | Son | Mail Man | Ohio |
| 20 | Clide A Mcginnis | 44 | Son | Office Clerk | Pennsylvania |
| 21 | Leo Mcginnis | 40 | Son | Insurance Broker | Ohio |
| 22 | Harold Crook | 45 | Head | Hardware Store | Illinois |
| 23 | Florence Crook | 43 | Wife | Hardware Store | Illinois |
| 24 | Robert Carlson | 45 | Brother in law | Hardware Store | Illinois |
| 25 | Natalie Carlson | 67 | Mother in law | — | Sweden |
| 26 | Helen Simmons | 41 | Head | Music Teacher | Iowa |
| 27 | Nellie Henterson | 81 | Mother | — | Ohio |
| 28 | Robert Cater | 47 | Head | Printer | Michigan |
| 29 | Evelyn Cater | 46 | Wife | — | Iowa |
| 30 | Lawrence Ketch | 37 | Head | Restaurant Manager | Missouri |
| 31 | Julia Ketch | 26 | Wife | Waitress | Missouri |
| 32 | Marjorie Ketch | 5 | Daughter | — | Illinois |
| 33 | Lawrence Jr Ketch | 13 | Son | — | Missouri |
| 34 | Richard R. Ketch | 11 | Son | — | Illinois |
| 35 | Lowell L. Ketch | 35 | Brother | Baker | Missouri |
| 36 | Walter Butler | 42 | Head | Lawyer | Illinois |
| 37 | Bernard Mchedditt | 70 | Uncle | — | Illinois |
| 38 | Erva Thompson | 30 | Lodger | Office Manager | Illinois |
| 39 | Herman Aaron | 27 | Lodger | Lawyer | Illinois |
| 40 | Rosalie Aaron | 23 | Lodger | Chemist | Illinois |
Pedigree Summary
George + 2 siblings
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)