WL
William Larson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marshall-County, Minnesota
Our Model Tree links this William Larson across the 1920, 1930 and 1940 US Censuses in Marshall-County, Minnesota (XGBoost, ~Confirmed), with identified parents Oscar & P — first a son (b.~1898), then head of a 8-person household.
Age 42
b. ~1898
Male
Son
Born: Minnesota
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Marshall-County, Minnesota |
| Surname | Larson |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Widowed |
| Birthplace | Minnesota |
| 1935 Residence (City) | Vega |
| 1935 Residence (County) | Marshall |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same home |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Vega |
| Est. Birth Year | ~1898 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Anna Larson | Daughter | — | 50 | ~1890 |
| Marie Larson | Head | — | 68 | ~1872 |
| Delores Larson | Other | — | 1 | ~1939 |
| Darrell Larson | Other | — | ~1940 | |
| Lena Larson | Daughter | — | 29 | ~1911 |
| Hilbert Larson | Son | — | 37 | ~1903 |
| Eileen Larson | Other | — | 5 | ~1935 |
| William Larson | Son | — | 42 | ~1898 |
Census Appearances
1920
Marshall, Minnesota
Son, age 22
Marshall, Minnesota · implied b. ~1898 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Willie O. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farm laborer |
| Industry | home farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Marshall, Minnesota
Son, age 32
Marshall, Minnesota · implied b. ~1898 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Willis C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Age at First Marriage | W |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Marshall-County, Minnesota
Son, age 42
Marshall-County, Minnesota · implied b. ~1898 — 8 household members
| Surname | Larson |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Widowed |
| Birthplace | Minnesota |
| 1935 Residence (City) | Vega |
| 1935 Residence (County) | Marshall |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same home |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 William 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 father P Larson (~0.92 confidence) and mother Maria Larson (~0.92 confidence) and mother Marie Larson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Oscar Larson
b. ~1863
Source father
● Household
· direct · ~0.92
Father
P Larson
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Maria Larson
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Marie Larson
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Larson
Son · 1940 · age 42 · b. ~1898 · Minnesota
★ You are viewing this record
Sibling
Hilbert Larson
Sibling · 1940 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Larson
Sibling · 1940 · age 50
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lena Larson
Sibling · 1940 · age 29
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 — Marshall-County, Minnesota
Open full size
1940 US Federal Census — Marshall-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01936-00749)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elsie Solberg | 19 | wife | — | Minnesota |
| 42 | Andrew Solberg | 58 | father | Farmer | Illinois |
| 43 | Annie Solberg | 53 | mother | None | Sweden |
| 44 | Warren Solberg | 17 | brother | Farm Laborer | Minnesota |
| 45 | John Olson | 42 | Head | Farmer | Sweden |
| 46 | Emma Olson | 46 | wife | None | Minnesota |
| 47 | Arthur Samuelson | 53 | Head | Farmer | North Dakota |
| 48 | Clara Samuelson | 53 | wife | None | North Dakota |
| 49 | Vernon Samuelson | 3 | son | — | Minnesota |
| 50 | George Berg | 53 | Head | Farmer | Minnesota |
| 51 | Gladys Berg | 38 | wife | None | Minnesota |
| 52 | Morris Aune | 41 | Head | Farmer | Minnesota |
| 53 | Ida Aune | 51 | sister | None | Minnesota |
| 54 | Lester Aune | 35 | brother | Farmer | Minnesota |
| 55 | Hans Aune | 86 | father | None | Norway |
| 56 | Fritz Swanson | 43 | Head | Farmer | Illinois |
| 57 | Hilda Swanson | 20 | wife | None | Minnesota |
| 58 | Donald Swanson | 1 | son | — | Minnesota |
| 59 | Marie Larson | 68 | Head | None | Sweden |
| 60 | Anna Larson | 50 | daughter | None | Minnesota |
| 61 | William Larson THIS PERSON | 42 | son | Farmer | Minnesota |
| 62 | Eileen Larson | 5 | granddaughter | — | Minnesota |
| 63 | Hilbert Larson | 37 | son | Farmer | Minnesota |
| 64 | Lena Larson | 29 | daughter | None | Minnesota |
| 65 | Delores Larson | 1 | granddaughter | — | Minnesota |
| 66 | Darrell Larson | 0 | grandson | — | Minnesota |
| 67 | Elmer Erickson | 65 | Head | Farmer | Sweden |
| 68 | Anna Erickson | 66 | wife | None | Illinois |
| 69 | Ralph Erickson | 39 | son | Farmer | Illinois |
| 70 | Esther Erickson | 35 | daughter-in-law | None | Minnesota |
| 71 | Marilyn Erickson | 9 | daughter | — | Minnesota |
| 72 | Ruby Erickson | 7 | granddaughter | — | Minnesota |
| 73 | Grace Erickson | 3 | granddaughter | — | Minnesota |
| 74 | Joseph Michalek | 49 | Head | Farmer | Minnesota |
| 75 | Laura Michalek | 52 | wife | None | North Dakota |
| 76 | Allan Michalek | 23 | son | None | North Dakota |
| 77 | Thomas Michalek | 20 | son | Farmer | North Dakota |
| 78 | Anshelm Nordstrom | 58 | Head | Driving School Bus | Minnesota |
| 79 | Ida Nordstrom | 57 | wife | None | Minnesota |
| 80 | Lloyd Nordstrom | 17 | son | Farm Laborer | Minnesota |
Pedigree Summary
William + 3 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)