RT
Roy Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Logan-County, Illinois
Our Model Tree links this Roy Thompson across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Logan-County, Illinois (XGBoost, ~Confirmed), with identified parents James & Ocie — first a head (b.~1889), then head of a 4-person household.
Age 51
b. ~1889
Male
Head
Born: Nebraska
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Logan-County, Illinois |
| Surname | Thompson |
| Given Name | Roy |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Eminence Township |
| 1935 Residence (County) | Logan |
| Additional Details | |
| Occupation | laborer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Laborer |
| Township / Ward | Eminence Township |
| Est. Birth Year | ~1889 |
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 Roy | Age | Birth yr |
|---|---|---|---|---|
| Mona Thompson | Spouse | — | 47 | ~1893 |
| James Thompson | Son | — | 8 | ~1932 |
| Paul Baker | Other | — | 18 | ~1922 |
| Roy Thompson | Head | — | 51 | ~1889 |
Census Appearances
1900
Logan, Illinois
Son, age 11
Logan, Illinois · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Roy H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Birth Month | Nov |
| Birth Year | 1889 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1910
Logan, Illinois
Son, age 21
Logan, Illinois · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1920
Logan, Illinois
Head, age 26
Logan, Illinois · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Roy E |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Nebraska |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Logan, Illinois
Head, age 41
Logan, Illinois · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Roy |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Age at First Marriage | 21 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Logan-County, Illinois
Head, age 51
Logan-County, Illinois · implied b. ~1889 — 4 household members
| Surname | Thompson |
| Given Name | Roy |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Eminence Township |
| 1935 Residence (County) | Logan |
| Occupation | laborer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Roy Thompson across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Thompson (~0.92 confidence) and mother Ocie Thompson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Thompson
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Ocie Thompson
b. ~1866
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Roy Thompson
Head · 1940 · age 51 · b. ~1889 · 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 — Logan-County, Illinois
Open full size
1940 US Federal Census — Logan-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00838-00621)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ray Thompson | 46 | Head | Manager | Nebraska |
| 42 | Ada Thompson | 44 | Wife | — | Illinois |
| 43 | Samuel C. Jr. Thompson | 21 | Son | — | Illinois |
| 44 | Ray E. Jr. Thompson | 17 | Son | — | Illinois |
| 45 | Robert G. Thompson | 13 | Son | — | Illinois |
| 46 | Samuel Sr. Thompson | 74 | Father | — | Illinois |
| 47 | Stuart Thompson | 45 | Head | Laborer | Northern Ireland |
| 48 | Leafy Thompson | 33 | Wife | — | Illinois |
| 49 | Eugene Thompson | 17 | Son | — | Illinois |
| 50 | Marian Thompson | 13 | Daughter | — | Illinois |
| 51 | Eleanor Thompson | 9 | Daughter | — | Illinois |
| 52 | Elizabeth Thompson | 7 | Daughter | — | Illinois |
| 53 | Sue Ellen Thompson | 2 | Daughter | — | Illinois |
| 54 | Richard Thompson | 21 | Son | Laborer | Illinois |
| 55 | Lois Thompson | 21 | Daughter-in-law | — | Illinois |
| 56 | James H. Thompson | 2 | Grandson | — | Illinois |
| 57 | Patricia Thompson | 1 | Granddaughter | — | Illinois |
| 58 | Roy Thompson THIS PERSON | 51 | Head | Laborer | Nebraska |
| 59 | Mona Thompson | 47 | Wife | — | Illinois |
| 60 | James Thompson | 8 | Son | — | Illinois |
| 61 | Paul Baker | 18 | Hired hand | Laborer | Illinois |
| 62 | James Baldwin | 69 | Head | — | Illinois |
| 63 | Roscoe Wilcoxon | 47 | Head | Laborer | Indiana |
| 64 | Jane Wilcoxon | 43 | Wife | — | Illinois |
| 65 | John Wilcoxon | 17 | Son | Laborer | Illinois |
| 66 | Rose Mary Wilcoxon | 4 | Daughter | — | Illinois |
| 67 | Glendon Bicknell | 27 | Head | Laborer | Illinois |
| 68 | Leona Bicknell | 22 | Wife | — | Illinois |
| 69 | Thomas Watt | 62 | Head | Laborer | Illinois |
| 70 | Lena Watt | 61 | Wife | — | Illinois |
| 71 | Roy Leeman | 32 | Head | Laborer | Illinois |
| 72 | Ethel Leeman | 27 | Wife | — | Minnesota |
| 73 | Kenneth Leeman | 5 | Son | — | Illinois |
| 74 | Gerald Leeman | 2 | Son | — | Illinois |
| 75 | Otis Jones | 66 | Head | Laborer | Kentucky |
| 76 | Gilbert Jones | 24 | Son | Laborer | Illinois |
| 77 | Mary Alice Thompson | 20 | Daughter | — | Illinois |
| 78 | William Thompson | 19 | Son | — | Illinois |
| 79 | Norma Adams | 17 | Daughter | — | Illinois |
| 80 | Ruth Gordon | 21 | Daughter | — | Illinois |
Pedigree Summary
Roy
Gen 1 · 2 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)