OL
Oscar Larson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Knox-County, Illinois
Our Model Tree links this Oscar Larson across the 1920, 1930 and 1940 US Censuses in Knox-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 4-person household.
Age 53
b. ~1887
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Illinois |
| Surname | Larson |
| Given Name | Oscar W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Galesburg City |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | stencil man |
| Industry | Mfg Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1220 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stencil Man |
| Township / Ward | Galesburg City |
| Est. Birth Year | ~1887 |
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 Oscar | Age | Birth yr |
|---|---|---|---|---|
| Russell Larson | Son | — | 15 | ~1925 |
| Amanda Larson | Spouse | — | 48 | ~1892 |
| Oscar Larson | Head | — | 53 | ~1887 |
| Verna Larson | Daughter | — | 9 | ~1931 |
Census Appearances
1920
Knox, Illinois
Head, age 33
Knox, Illinois · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Oscar W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | painter |
| Industry | factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Knox, Illinois
Head, age 43
Knox, Illinois · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Oscar A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 25 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Painter |
| Industry | Plate Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Head, age 53
Knox-County, Illinois · implied b. ~1887 — 4 household members
| Surname | Larson |
| Given Name | Oscar W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Galesburg City |
| 1935 Residence (County) | Knox |
| Occupation | stencil man |
| Industry | Mfg Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1220 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| 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 Larson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Oscar Larson
Head · 1940 · age 53 · b. ~1887 · 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 — Knox-County, Illinois
Open full size
1940 US Federal Census — Knox-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00826-00851)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Louella Richardson | 70 | Wife | — | Illinois |
| 42 | Ruth A. Willis | 66 | Head | — | Illinois |
| 43 | Bob Willis | 14 | Son | Newspaper | Illinois |
| 44 | Alfred Johnson | 72 | Head | — | Sweden |
| 45 | Ethel S. Johnson | 58 | Wife | — | Sweden |
| 46 | Sylvester D. Laukey | 43 | Head | Machinist | New York |
| 47 | Lillian Laukey | 43 | Wife | — | Illinois |
| 48 | Julian Laukey | 13 | Son | — | Illinois |
| 49 | Joyce Laukey | 9 | Daughter | — | Illinois |
| 50 | George Kennedy | 71 | Lodger | — | Illinois |
| 51 | Oscar W. Larson THIS PERSON | 53 | Head | Stencil Man | Illinois |
| 52 | Amanda Larson | 48 | Wife | — | Illinois |
| 53 | Russell Larson | 15 | Son | — | Illinois |
| 54 | Verna Larson | 9 | Daughter | — | Illinois |
| 55 | Marshall Berg | 53 | Head | Electrician | Norway |
| 56 | Gladys Berg | 37 | Wife | — | Illinois |
| 57 | Irene Berg | 16 | Daughter | — | Illinois |
| 58 | Clara Johnson | 67 | Mother-in-law | — | Illinois |
| 59 | Ruby Wardord | 44 | Head | Operator | Illinois |
| 60 | Robert Lyle Wardord | 48 | Husband | Laborer | Illinois |
| 61 | Richard Stearns | 23 | Son | — | Illinois |
| 62 | Ada Williams | 75 | Head | — | Illinois |
| 63 | Raymond Lucas | 24 | Lodger | — | Illinois |
| 64 | George Ryan | 48 | Head | Fireman | Arkansas |
| 65 | Ida B. Ryan | 49 | Wife | — | Wisconsin |
| 66 | Doris Ryan | 17 | Daughter | — | Iowa |
| 67 | George Jr. Ryan | 15 | Son | — | Illinois |
| 68 | Lillian Ryan | 13 | Daughter | — | Illinois |
| 69 | Charles Messum | 49 | Head | Caretaker Of Bulk Plant | Illinois |
| 70 | Gladys Messum | 49 | Wife | — | Illinois |
| 71 | Sharlene Messum | 16 | Daughter | — | Illinois |
| 72 | Francis Scott | 23 | Lodger | Filling Station Attendant | Illinois |
| 73 | Bernard Windish | 33 | Head | Salesmanager | Illinois |
| 74 | Ruth Windish | 33 | Wife | — | Illinois |
| 75 | Robert Windish | 7 | Son | — | Illinois |
| 76 | Charles Walker | 60 | Lodger | Asst Postmaster | Illinois |
| 77 | Charles A. Hillier | 47 | Head | Agent | Illinois |
| 78 | Garnett Hillier | 48 | Wife | — | Nebraska |
| 79 | Thelma Hillier | 24 | Daughter | Waitress | Illinois |
| 80 | Mary Jane Hillier | 15 | Daughter | — | Illinois |
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)