DT
Donald Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Tazewell-County, Illinois
Our Model Tree links this Donald Thompson across the 1920, 1930 and 1940 US Censuses in Tazewell-County, Illinois (XGBoost, ~Confirmed), with identified parents Ernest & Dorothy — first a son (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Male
Son
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Tazewell-County, Illinois |
| Surname | Thompson |
| Given Name | Donald W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Pekin |
| 1935 Residence (County) | Tazewell |
| Additional Details | |
| Occupation | truck driver |
| Industry | creamery |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 390 |
| Highest Grade | H-3 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Truck Driver |
| Township / Ward | Pekin |
| Est. Birth Year | ~1920 |
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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Ernest Thompson | Head | — | 48 | ~1892 |
| Dorothy Thompson | Other | — | 19 | ~1921 |
| Dorothy Thompson | Spouse | — | 47 | ~1893 |
| Donald Thompson | Son | — | 20 | ~1920 |
| Ernest Thompson | Son | — | 22 | ~1918 |
Census Appearances
1920
Tazewell, Illinois
Son, age
Tazewell, Illinois · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Tazewell, Illinois
Son, age 10
Tazewell, Illinois · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Tazewell-County, Illinois
Son, age 20
Tazewell-County, Illinois · implied b. ~1920 — 5 household members
| Surname | Thompson |
| Given Name | Donald W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Pekin |
| 1935 Residence (County) | Tazewell |
| Occupation | truck driver |
| Industry | creamery |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 390 |
| Highest Grade | H-3 |
| 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 Donald Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ernest Thompson (~0.92 confidence) and mother Dorothy Thompson (~0.92 confidence) and father Earnest Thompson (~0.92 confidence) and mother Dora Thompson (~0.92 confidence) and father Ernest Thompson (~0.92 confidence) and mother Dorothy Thompson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ernest Thompson
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Dorothy Thompson
b. ~1893
Source mother
● Household
· direct · ~0.92
Father
Earnest Thompson
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Dora Thompson
b. ~1896
Source mother
● Household
· direct · ~0.92
Father
Ernest Thompson
b. ~1897
Source father
● Household
· direct · ~0.92
Mother
Dorothy Thompson
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Thompson
Son · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Ernest Thompson
Sibling · 1940 · age 22
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 — Tazewell-County, Illinois
Open full size
1940 US Federal Census — Tazewell-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00895-00164)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Duke R. Brown | 37 | Head | Salesman | Illinois |
| 42 | Marie S. Brown | 31 | Wife | — | Indiana |
| 43 | Charlene M. Brown | 7 | Daughter | — | California |
| 44 | Robert O. Brown | 25 | Brother-in-law | Laborer | Indiana |
| 45 | Helen A. Brown | 23 | Sister-in-law | — | Pennsylvania |
| 46 | Roberta R. Brown | 9 | Niece | — | Ohio |
| 47 | Ora Frank Barcus | 51 | Father-in-law | Miner | Indiana |
| 48 | George Winkler | 65 | Head | Sweeper | Ohio |
| 49 | Rhoda Winkler | 75 | Wife | — | Virginia |
| 50 | Harry J. Gemmell | 27 | Head | Oiler | Kentucky |
| 51 | Goldie V. Gemmell | 24 | Wife | — | Illinois |
| 52 | Beverly J. Gemmell | 4 | Daughter | — | Illinois |
| 53 | Murlene K. Gemmell | 1 | Daughter | — | Illinois |
| 54 | Carrie Oltman | 59 | Head | — | Illinois |
| 55 | Kenneth R. Oltman | 19 | Son | Laborer | Illinois |
| 56 | Vincent Oltman | 17 | Son | — | Illinois |
| 57 | Mildred L. Oltman | 13 | Daughter | — | Illinois |
| 58 | Carl C. Shelton | 34 | Head | Tipple Operator | Illinois |
| 59 | Clara M. Shelton | 37 | Wife | — | Illinois |
| 60 | Kenneth C. Shelton | 14 | Son | Paper Boy | Illinois |
| 61 | Elmer C. Shelton | 13 | Son | — | Illinois |
| 62 | Norman H. Shelton | 11 | Son | — | Illinois |
| 63 | Ronald W. Shelton | 8 | Son | — | Illinois |
| 64 | Darlene V. Shelton | 1 | Son | — | Illinois |
| 65 | Carl J. Cook | 44 | Head | — | Illinois |
| 66 | J. Minerva Cook | 41 | Wife | — | Michigan |
| 67 | Kenneth C. Cook | 19 | Son | Attendant | Illinois |
| 68 | Carl J. Jr. Cook | 16 | Son | New Worker | Illinois |
| 69 | Geraldine M. Cook | 11 | Daughter | — | Illinois |
| 70 | Shirley J. Cook | 3 | Daughter | — | Illinois |
| 71 | Le Roy Cook | 20 | Son | Painter'S Helper | Illinois |
| 72 | Helen Cook | 18 | Daughter-in-law | — | Illinois |
| 73 | Richard L. Cook | 2 | Grand-son | — | Illinois |
| 74 | Ernest M. Thompson | 48 | Head | — | Illinois |
| 75 | Dorothy A. Thompson | 47 | Wife | — | Illinois |
| 76 | Ernest L. (At) Thompson | 22 | Son | — | Illinois |
| 77 | Donald W. Thompson THIS PERSON | 20 | Son | Truck Driver | Illinois |
| 78 | Dorothy M. Thompson | 19 | In-law | — | Illinois |
| 79 | — | None | — | — | — |
| 80 | Virgil A. Money | 25 | Head | Refinery Worker | Illinois |
Related Census Records
Pedigree Summary
Donald + 1 sibling
Gen 1 · 6 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)