OT
Oscar Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lyon-County, Kansas
Our Model Tree links this Oscar Thompson across the 1910, 1920, 1930 and 1940 US Censuses in Lyon-County, Kansas (XGBoost, ~Confirmed), with identified parents Gifford & Sanford — first a son (b.~1902), then head of a 3-person household.
Age 38
b. ~1902
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lyon-County, Kansas |
| Surname | Thompson |
| Given Name | Oscar B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | E. Emporia Twp |
| 1935 Residence (County) | Lyon |
| Additional Details | |
| Occupation | Salesman |
| Industry | Candy Co. |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 278 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Salesman |
| Township / Ward | E Emporia Twp |
| Est. Birth Year | ~1902 |
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 Oscar | Age | Birth yr |
|---|---|---|---|---|
| Sanford Thompson | Head | — | 70 | ~1870 |
| Edith Thompson | Spouse | — | 69 | ~1871 |
| Oscar Thompson | Son | — | 38 | ~1902 |
Census Appearances
1910
Lyon, Kansas
Son, age 4
Lyon, Kansas · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Oscar J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Missouri |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1920
Lyon, Kansas
Son, age 14
Lyon, Kansas · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Lyon, Kansas
Son, age 23
Lyon, Kansas · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Oscar C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Missouri |
| Occupation | Salesman |
| Industry | Music Furnishings |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Lyon-County, Kansas
Son, age 38
Lyon-County, Kansas · implied b. ~1902 — 3 household members
| Surname | Thompson |
| Given Name | Oscar B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | E. Emporia Twp |
| 1935 Residence (County) | Lyon |
| Occupation | Salesman |
| Industry | Candy Co. |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 278 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Oscar Thompson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Gifford Thompson (~0.92 confidence) and father Sanford Thompson (~0.92 confidence) and father Sanford Thompson (~0.92 confidence) and mother Edith Thompson (~0.92 confidence) and mother Edith Thompson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Gifford Thompson
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Sanford Thompson
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Sanford Thompson
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Edith Thompson
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Edith Thompson
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Thompson
Son · 1940 · age 38 · b. ~1902 · Kansas
★ 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 — Lyon-County, Kansas
Open full size
1940 US Federal Census — Lyon-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01242-00584)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | May Marsh | 66 | Wife | — | Kansas |
| 2 | Raymond F. Clow | 48 | Head | Manager | Kansas |
| 3 | Hazel L. Clow | 44 | Wife | Operator | Kansas |
| 4 | Kenneth Hawkins | 34 | Head | Operator | Kansas |
| 5 | Clara Hawkins | 36 | Wife | Operator | Arkansas |
| 6 | Sanford Thompson | 70 | Head | Farmer | Kansas |
| 7 | Edith Thompson | 69 | Wife | — | Missouri |
| 8 | Oscar B. Thompson THIS PERSON | 38 | Son | Salesman | Kansas |
| 9 | Eliza Bradley | 79 | Head | — | England |
| 10 | Walter W. Engle | 23 | Head | House To House Salesman | North Dakota |
| 11 | Myrtle R. Engle | 27 | Wife | — | Kansas |
| 12 | Joseph F. Webb | 58 | Father-in-law | Common Labor | Missouri |
| 13 | Jerry G. Engle | 2 | Son | — | Kansas |
| 14 | Emanuel Jefferson | 65 | Head | Gardener | Mississippi |
| 15 | Fillie Jefferson | 58 | Wife | — | Mississippi |
| 16 | William M. Buck | 58 | Head | Dealer | Kansas |
| 17 | Minnie Buck | 55 | Wife | — | Kansas |
| 18 | Floyd Buck | 21 | Son | New Worker | Kansas |
| 19 | Ruth Buck | 20 | Daughter | Sewing Project | Kansas |
| 20 | Vernon Buck | 18 | Son | — | Kansas |
| 21 | Verl Buck | 12 | Son | Messenger Boy | Kansas |
| 22 | Margaret Buck | 8 | Daughter | — | Kansas |
| 23 | Dorothy Buck | 11 | Daughter | — | Kansas |
| 24 | Bette Grimmett | 6 | Granddaughter | — | Kansas |
| 25 | Raymond Grimmett | 5 | Grandson | — | Kansas |
| 26 | Ivan Grimmett | 37 | Head | Mechanic | Kansas |
| 27 | Lucy Grimmett | 37 | Wife | — | Indiana |
| 28 | Lucille Grimmett | 12 | Daughter | — | Kansas |
| 29 | Leona Grimmett | 15 | Daughter | — | Kansas |
| 30 | Clayton C. Grimmett | 1 | Son | — | Kansas |
| 31 | Orval Bess | 32 | Head | Timekeeper | Missouri |
| 32 | Ruby Bess | 28 | Wife | Gardener | Missouri |
| 33 | Earl Bess | 6 | Son | — | Missouri |
| 34 | Albert R. Main | 55 | Head | Carpenter Helper | Kansas |
| 35 | Elva Main | 47 | Wife | — | Iowa |
| 36 | Gwendolyn Main | 21 | Daughter | Head Cashier | Kansas |
| 37 | Albert Jr. Main | 13 | Son | — | Kansas |
| 38 | Dick Caywood | 40 | Head | Truck Driver | Missouri |
| 39 | Ruby Caywood | 36 | Wife | — | Kansas |
| 40 | Edwin Caywood | 18 | Son | New Worker | Kansas |
Related Census Records
Pedigree Summary
Oscar
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)