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Oscar Larson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mcpherson-County, Kansas
Our Model Tree links this Oscar Larson across the 1920, 1930 and 1940 US Censuses in Mcpherson-County, Kansas (XGBoost, ~Confirmed), with identified parents Oscar & Mildred — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mcpherson-County, Kansas |
| Surname | Larson |
| Given Name | Oscar Junior |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Empire |
| 1935 Residence (County) | McPherson |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 38 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Laborer |
| Township / Ward | Empire |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Oscar | Age | Birth yr |
|---|---|---|---|---|
| Oscar Larson | Head | — | 48 | ~1892 |
| Gloria Larson | Daughter | — | 17 | ~1923 |
| Oscar Larson | Son | — | 21 | ~1919 |
| Mildred Larson | Spouse | — | 44 | ~1896 |
| Robert Larson | Son | — | 14 | ~1926 |
| Ruth Larson | Daughter | — | 15 | ~1925 |
Census Appearances
1920
Mcpherson, Kansas
Son, age 1
Mcpherson, Kansas · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Oscar J. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Occupation | none |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Mcpherson, Kansas
Son, age 11
Mcpherson, Kansas · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Oscar Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Mcpherson-County, Kansas
Son, age 21
Mcpherson-County, Kansas · implied b. ~1919 — 6 household members
| Surname | Larson |
| Given Name | Oscar Junior |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Empire |
| 1935 Residence (County) | McPherson |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 38 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 Larson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Oscar Larson (~0.92 confidence) and mother Mildred Larson (~0.92 confidence) and mother Mildred Larson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Oscar Larson
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Mildred Larson
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Mildred Larson
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Larson
Son · 1940 · age 21 · b. ~1919 · Kansas
★ You are viewing this record
Sibling
Robert Larson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gloria Larson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Larson
Sibling · 1940 · age 15
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 — Mcpherson-County, Kansas
Open full size
1940 US Federal Census — Mcpherson-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01243-00113)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nadine Clark | 16 | daughter | — | Oklahoma |
| 42 | A. W. Clark | 14 | son | — | Oklahoma |
| 43 | Claude Juby | 43 | head | Pumper | Oklahoma |
| 44 | Ruth Juby | 23 | wife | — | Oklahoma |
| 45 | Weldon Juby | 16 | son | — | Oklahoma |
| 46 | Gale Juby | 1 | son | — | Kansas |
| 47 | H. J. Farrar | 30 | head | Pumper | Missouri |
| 48 | Martha Farrar | 27 | wife | — | Oklahoma |
| 49 | Bobby Farrar | 3 | son | — | Kansas |
| 50 | John Mcmasters | 35 | head | Production Foreman | Oklahoma |
| 51 | Kathryn Mcmasters | 29 | wife | — | Kansas |
| 52 | Robert E. Mcmasters | 1 | son | — | Kansas |
| 53 | Ward Myers | 43 | head | Farmer | Kansas |
| 54 | Maude Myers | 43 | wife | Farmer | Kansas |
| 55 | Patricia Myers | 11 | daughter | — | Kansas |
| 56 | Joan Myers | 10 | daughter | — | Kansas |
| 57 | Leanna Myers | 4 | daughter | — | Kansas |
| 58 | Gloria Myers | 4 | daughter | — | Kansas |
| 59 | Wendell Myers | 1 | son | — | Kansas |
| 60 | Kurt Myers | 1 | son | — | Kansas |
| 61 | Ray Embers | 24 | head | Farmer | Kansas |
| 62 | Virginia Embers | 19 | wife | — | Oklahoma |
| 63 | Ronald Embers | 1 | son | — | Kansas |
| 64 | Arthur Lindborg | 77 | head | Farmer | Kansas |
| 65 | Myrtle Lindborg | 45 | wife | — | Kansas |
| 66 | Wallace Lindborg | 18 | son | — | Kansas |
| 67 | Charles Lindborg | 10 | son | — | Kansas |
| 68 | Cornet Cleland | 41 | head | Farmer | Kansas |
| 69 | Hattie Cleland | 46 | wife | — | Kansas |
| 70 | Bedell Cobb | 21 | son | Farmer | Montana |
| 71 | G. Edd. Soder | 62 | head | Farmer | Kansas |
| 72 | Helda Soder | 59 | wife | — | Kansas |
| 73 | Lloyd Soder | 27 | son | Farmer | Illinois |
| 74 | Theodor Nordstrom | 59 | head | Farmer | Sweden |
| 75 | Oscar Larson | 48 | head | Farmer | Kansas |
| 76 | Mildred Larson | 44 | wife | — | Kansas |
| 77 | Oscar Junior Larson THIS PERSON | 21 | son | Laborer | Kansas |
| 78 | Robert Larson | 14 | son | — | Kansas |
| 79 | Gloria Larson | 17 | daughter | — | Kansas |
| 80 | Ruth Larson | 15 | daughter | — | Kansas |
Related Census Records
Pedigree Summary
Oscar + 3 siblings
Gen 1 · 3 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)