RT
Roy Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cimarron-County, Oklahoma
Our Model Tree links this Roy Thompson across the 1920, 1930 and 1940 US Censuses in Cimarron-County, Oklahoma (XGBoost, ~Confirmed), with identified parents James & L — first a son (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Male
Son
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cimarron-County, Oklahoma |
| Surname | Thompson |
| Given Name | Roy A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Wheeless Township |
| 1935 Residence (County) | Cimarron |
| Additional Details | |
| Occupation | Farm hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 266 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same house |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Farm Hand |
| Township / Ward | Wheeless Township |
| Est. Birth Year | ~1916 |
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 Roy | Age | Birth yr |
|---|---|---|---|---|
| Mabel Thompson | Spouse | — | 47 | ~1893 |
| Lanning Thompson | Head | — | 55 | ~1885 |
| Virgil Thompson | Son | — | 22 | ~1918 |
| Roy Thompson | Son | — | 24 | ~1916 |
| Vessie Thompson | Daughter | — | 16 | ~1924 |
Census Appearances
1920
Cimarron, Oklahoma
Son, age 4
Cimarron, Oklahoma · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Roy |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | Illinois |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Cimarron, Oklahoma
Son, age 14
Cimarron, Oklahoma · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Roy A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Age at First Marriage | 14 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Cimarron-County, Oklahoma
Son, age 24
Cimarron-County, Oklahoma · implied b. ~1916 — 5 household members
| Surname | Thompson |
| Given Name | Roy A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Wheeless Township |
| 1935 Residence (County) | Cimarron |
| Occupation | Farm hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 266 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same house |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Thompson (~0.92 confidence) and father L Thompson (~0.92 confidence) and mother Mable Thompson (~0.92 confidence) and mother Mabel Thompson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Thompson
b. ~1884
Source father
● Household
· direct · ~0.92
Father
L Thompson
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Mable Thompson
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Mabel Thompson
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Roy Thompson
Son · 1940 · age 24 · b. ~1916 · Oklahoma
★ You are viewing this record
Sibling
Virgil Thompson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vessie Thompson
Sibling · 1940 · age 16
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 — Cimarron-County, Oklahoma
Open full size
1940 US Federal Census — Cimarron-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03284-00101)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alma M. Ceder | 39 | Head | Bus Driver | Kansas |
| 2 | Grace B. Ceder | 39 | Wife | — | Kansas |
| 3 | James F. Ceder | 20 | Son | Farm Laborer | Oklahoma |
| 4 | Juanita P. Ceder | 19 | Daughter | Student Aid | Oklahoma |
| 5 | Wm A. Knight | 64 | Head | Farmer | Texas |
| 6 | Ruby P. Knight | 47 | Wife | — | Oklahoma |
| 7 | Wm Jr. Knight | 22 | Son | Ranch Hand | Oklahoma |
| 8 | Lanning B. Thompson | 55 | Head | Farmer | South Carolina |
| 9 | Mabel A. Thompson | 47 | Wife | — | Illinois |
| 10 | Roy A. Thompson THIS PERSON | 24 | Son | Farm Hand | Oklahoma |
| 11 | Virgil L. Thompson | 22 | Son | — | Oklahoma |
| 12 | Vessie P. Thompson | 16 | Daughter | — | Texas |
| 13 | William A. Thrash | 55 | Head | Farmer | Alabama |
| 14 | Mattie B. Thrash | 39 | Wife | — | Texas |
| 15 | John T. Thrash | 22 | Son | Farm Hand | Oklahoma |
| 16 | Emil J. Lewis | 42 | Head | Farmer | Kansas |
| 17 | Esther E. Lewis | 35 | Wife | — | Nebraska |
| 18 | Theodore G. Lewis | 17 | Son | Farm Hand | Kansas |
| 19 | Henry J. Walker | 55 | Head | Farmer | Kansas |
| 20 | Clara M. Walker | 29 | Wife | — | Missouri |
| 21 | Clarence R. Walker | 17 | Son | Farm Hand | Oklahoma |
| 22 | Donald W. Walker | 13 | Son | — | Oklahoma |
| 23 | Bonnie R. Walker | 3 | Daughter | — | Oklahoma |
| 24 | Ida M. Walker | 2 | Daughter | — | Oklahoma |
| 25 | Roy L. Giles | 10 | Stepson | — | Oklahoma |
| 26 | Bessie R. Giles | 7 | Stepson | — | Oklahoma |
| 27 | Theodore Studer | 45 | Head | Farmer | Oklahoma |
| 28 | Irene M. Studer | 30 | Wife | Farmette | Oklahoma |
| 29 | Ray Ditto | 21 | Hired hand | Farm Hand | Kansas |
| 30 | Ray L. Wilson | 31 | Head | Farmer | Kansas |
| 31 | Ora M. Wilson | 26 | Wife | — | Oklahoma |
| 32 | Raymond E. Wilson | 9 | Son | — | Oklahoma |
| 33 | Marjorie J. Wilson | 1 | Daughter | — | Oklahoma |
| 34 | Otis N. Williams | 24 | Hired hand | Farmer | Oklahoma |
| 35 | Hilda F. Williams | 17 | Sister in law | — | Oklahoma |
| 36 | Glenn D. Ottinger | 41 | Head | Bus Driver | Tennessee |
| 37 | Ethel R. Ottinger | 39 | Wife | — | Iowa |
| 38 | Lucile J. Ottinger | 16 | Daughter | — | New Mexico |
| 39 | Guy L. Ottinger | 12 | Son | — | New Mexico |
| 40 | Glenn D. Jr. Ottinger | 11 | Son | — | Oklahoma |
Pedigree Summary
Roy + 2 siblings
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)