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Oscar Olson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this Oscar Olson across the 1920, 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed), with identified parents Olof & Selma — first a head (b.~1905), then head of a 5-person household.
Age 35
b. ~1905
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Olson |
| Given Name | Oscar |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Stanton |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Operator |
| Township / Ward | Stanton |
| Est. Birth Year | ~1905 |
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 Oscar | Age | Birth yr |
|---|---|---|---|---|
| Oscar Olson | Head | — | 35 | ~1905 |
| Wendell Olson | Son | — | 1 | ~1939 |
| Vernon Olson | Son | — | 5 | ~1935 |
| Merwyn Olson | Son | — | 6 | ~1934 |
| Hilda Olson | Spouse | — | 26 | ~1914 |
Census Appearances
1920
Champaign, Illinois
Son, age 15
Champaign, Illinois · implied b. ~1905 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Champaign, Illinois
Head, age 25
Champaign, Illinois · implied b. ~1905 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Oscar |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Champaign-County, Illinois
Head, age 35
Champaign-County, Illinois · implied b. ~1905 — 5 household members
| Surname | Olson |
| Given Name | Oscar |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Stanton |
| 1935 Residence (County) | Champaign |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | G 8 |
| 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 Oscar Olson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Olof Olson (~0.92 confidence) and mother Selma Olson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Olof Olson
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Selma Olson
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Olson
Head · 1940 · age 35 · b. ~1905 · 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 — Champaign-County, Illinois
Open full size
1940 US Federal Census — Champaign-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00766-00900)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Selma Vinson | 43 | Wife | — | Illinois |
| 42 | William Vinson | 20 | Son | Farm Hand | Illinois |
| 43 | Garold Vinson | 17 | Son | — | Illinois |
| 44 | Sadie Marsh | 67 | Head | — | Illinois |
| 45 | Opal Marsh | 45 | Daughter | — | Illinois |
| 46 | Walter Eubank | 52 | Head | Farm Hand | Illinois |
| 47 | Minnie Eubank | 43 | Wife | — | Illinois |
| 48 | Gladis Eubank | 21 | Daughter | — | Illinois |
| 49 | Doris Eubank | 18 | Daughter | — | Illinois |
| 50 | Donald Eubank | 16 | Son | — | Illinois |
| 51 | Harold Eubank | 14 | Son | — | Illinois |
| 52 | Mildred Eubank | 11 | Daughter | — | Illinois |
| 53 | Clinton Eubank | 75 | Uncle | — | Indiana |
| 54 | William Ehmen | 21 | Head | Operator | Illinois |
| 55 | Emma Ehmen | 19 | Wife | — | Illinois |
| 56 | Donald Ehmen | 2 | Son | — | Illinois |
| 57 | Merle Phenicie | 48 | Head | Operator | Illinois |
| 58 | Blanch Phenicie | 42 | Wife | — | Illinois |
| 59 | Murray Phenicie | 19 | Son | Hand | Illinois |
| 60 | Clarence Wilson | 61 | Head | Operator | Illinois |
| 61 | Gurthand Wilson | 64 | Wife | — | Illinois |
| 62 | Oscar Olson THIS PERSON | 35 | Head | Operator | Illinois |
| 63 | Hilda Olson | 26 | Wife | — | Illinois |
| 64 | Merwyn Olson | 6 | Son | — | Illinois |
| 65 | Vernon Olson | 5 | Son | — | Illinois |
| 66 | Wendell Olson | 1 | Son | — | Illinois |
| 67 | John Jr. Huls | 24 | Head | Operator | Illinois |
| 68 | Grace Huls | 23 | Wife | — | Illinois |
| 69 | Marleen Huls | 1 | Daughter | — | Illinois |
| 70 | Lorenz Bluhm | 29 | Head | Operator | Illinois |
| 71 | Etta Bluhm | 27 | Wife | — | Illinois |
| 72 | Myron Bluhm | 5 | Son | — | Illinois |
| 73 | Leon Bluhm | 3 | Son | — | Illinois |
| 74 | George Frubling | 40 | Head | Operator | Illinois |
| 75 | Emma Frubling | 36 | Wife | — | Illinois |
| 76 | Wilbert Frubling | 8 | Son | — | Illinois |
| 77 | Robert Frubling | 7 | Son | — | Illinois |
| 78 | Arnold Frubling | 5 | Son | — | Illinois |
| 79 | Anel Hennig | 77 | Father-in-law | — | Germany |
| 80 | William Loeschen | 27 | Head | Operator | Illinois |
Pedigree Summary
Oscar
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)