ET
Earl Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Earl Thompson across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Reuben & Johanna — first a head (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Thompson |
| Given Name | Earl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Draftsman |
| Industry | Railroad Car Co |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 1162 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Draftsman |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1911 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Earl | Age | Birth yr |
|---|---|---|---|---|
| Marion Thompson | Spouse | — | 23 | ~1917 |
| Earl Thompson | Head | — | 29 | ~1911 |
| Donna Thompson | Daughter | — | 1 | ~1939 |
Census Appearances
1920
Cook, Illinois
Son, age 9
Cook, Illinois · implied b. ~1911 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| 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 19
Cook, Illinois · implied b. ~1911 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Germany |
| Occupation | Draftsman |
| Industry | Pullman Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 29
Cook-County, Illinois · implied b. ~1911 — 3 household members
| Surname | Thompson |
| Given Name | Earl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Draftsman |
| Industry | Railroad Car Co |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 1162 |
| Highest Grade | H 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 Earl Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Reuben Thompson (~0.92 confidence) and mother Johanna Thompson (~0.92 confidence) and father Ruben Thompson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Reuben Thompson
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Johanna Thompson
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
Ruben Thompson
b. ~1886
Source father
● Household
· direct · ~0.92
This person
Anchor record
Earl Thompson
Head · 1940 · age 29 · b. ~1911 · 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-t0627-00939-00605)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Angeline Gasperini | 16 | Daughter | — | Illinois |
| 2 | Mary Gasperini | 13 | Daughter | — | Illinois |
| 3 | Lawrence Vittori | 48 | Lodger | Watchman | Pennsylvania |
| 4 | Jack Dillon | 35 | Head | Machinist | Italy |
| 5 | Helen Dillon | 30 | Wife | Fitter | Italy |
| 6 | Dominic Portonaro | 45 | Lodger | Cook | Italy |
| 7 | Paul Diacolone | 18 | Lodger | Hammermith | Pennsylvania |
| 8 | — | None | — | — | — |
| 9 | Rudolph Dra|Mui|Mutikun | 48 | Head | Proprietor | Illinois |
| 10 | Josephine Dra|Mui|Mutikun | 47 | Wife | Waitress | Illinois |
| 11 | Sylvia Dra|Mui|Mutikun | 13 | Daughter | — | Illinois |
| 12 | Henry Dra|Mui|Mutikun | 11 | Son | — | Illinois |
| 13 | Dolly Rheins | 20 | Maid | Housekeeper | Indiana |
| 14 | Charles Robb | 50 | Head | Punch Press Operator | Illinois |
| 15 | Julia Robb | 47 | Wife | — | Illinois |
| 16 | Arthur Charles Robb | 26 | Son | Trimming Machine Operator | Illinois |
| 17 | James Robb | 22 | Son | Operator | Illinois |
| 18 | Lillian Robb | 17 | Daughter | — | Illinois |
| 19 | Joseph Danderike | 60 | Head | Painter And Decorator | Belgium |
| 20 | Johanna Danderike | 51 | Wife | — | Netherlands |
| 21 | Edward Danderike | 24 | Son | Attendant | Illinois |
| 22 | Joseph Danderike | 18 | Son | Attendant | Illinois |
| 23 | Ignacy Kancunas | 61 | Head | Laborer | Lithuania |
| 24 | Anna Kancunas | 47 | Wife | — | Lithuania |
| 25 | Stanley Kancunas | 26 | Son | Sign Painter | Illinois |
| 26 | Anton Kancunas | 20 | Son | Apprentice Painter | Illinois |
| 27 | Joseph Pelekis | 60 | Lodger | Truck Repairer | Lithuania |
| 28 | Stephen Matash | 32 | Head | Highsteel Grinder | Lithuania |
| 29 | Estelle Matash | 25 | Wife | Stenographer | Illinois |
| 30 | Allan Matash | 1 | Son | — | Illinois |
| 31 | Diana Gukas | 42 | Mother | — | Lithuania |
| 32 | James Richmond | 84 | Head | — | Illinois |
| 33 | Rose Richmond | 72 | Wife | — | New York |
| 34 | Martha Griekalent | 64 | Head | — | Michigan |
| 35 | Earl Thompson THIS PERSON | 29 | Head | Draftsman | Illinois |
| 36 | Marion Thompson | 23 | Wife | — | Michigan |
| 37 | Donna Jean Thompson | 1 | Daughter | — | Illinois |
| 38 | Frank Dekker | 56 | Head | Bookkeeper & Auditor | Illinois |
| 39 | Dorothy Dekker | 52 | Wife | — | Illinois |
| 40 | Frank Jr. Dekker | 23 | Son | Accountant | Illinois |
Pedigree Summary
Earl
Gen 1 · 3 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)