LL
Louis Larson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Roseau-County, Minnesota
Our Model Tree links this Louis Larson across the 1920, 1930 and 1940 US Censuses in Roseau-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1871), then head of a 3-person household.
Age 69
b. ~1871
Male
Head
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Roseau-County, Minnesota |
| Surname | Larson |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Grimstad Township |
| 1935 Residence (County) | Roseau |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | farmer |
| Industry | farming |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same home |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Farmer |
| Township / Ward | Grimstad Township |
| Est. Birth Year | ~1871 |
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 Louis | Age | Birth yr |
|---|---|---|---|---|
| Minnie Larson | Spouse | — | 57 | ~1883 |
| Carl Larson | Son | — | 34 | ~1906 |
| Louis Larson | Head | — | 69 | ~1871 |
Census Appearances
1920
Winneshiek, Minnesota
Head, age 46
Winneshiek, Minnesota · implied b. ~1874 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1886 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Bookbinder |
| Industry | Publishing House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1930
Roseau, Minnesota
Head, age 58
Roseau, Minnesota · implied b. ~1872 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Alien |
| Year of Immigration | 1886 |
| Age at First Marriage | 27 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | Hay Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Veteran | No |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Roseau-County, Minnesota
Head, age 69
Roseau-County, Minnesota · implied b. ~1871 — 3 household members
| Surname | Larson |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Grimstad Township |
| 1935 Residence (County) | Roseau |
| Naturalization Status | Naturalized |
| Occupation | farmer |
| Industry | farming |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same home |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 Louis Larson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Larson
Head · 1940 · age 69 · b. ~1871 · Minnesota
★ 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 — Roseau-County, Minnesota
Open full size
1940 US Federal Census — Roseau-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01954-00504)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marvin Erickson | 8 | Son | — | Minnesota |
| 2 | Howard Erickson | 5 | Son | — | Minnesota |
| 3 | Eileen Erickson | 3 | Daughter | — | Minnesota |
| 4 | Ray Gubrud | 54 | Head | Farmer | Minnesota |
| 5 | Bess Gubrud | 45 | Wife | — | Minnesota |
| 6 | Doris Gubrud | 14 | Daughter | — | Minnesota |
| 7 | David Gubrud | 12 | Son | — | Minnesota |
| 8 | Betty Gubrud | 9 | Daughter | — | Minnesota |
| 9 | Ronald Gubrud | 7 | Son | — | Minnesota |
| 10 | Theodore Arneson | 64 | Head | Farmer | Iowa |
| 11 | Olive Arneson | 61 | Wife | Farm Labor | Iowa |
| 12 | Alfred Larson | 36 | Head | Farmer | Minnesota |
| 13 | Ole Larson | 48 | Brother | Farmer | Minnesota |
| 14 | Charley Larson | 39 | Brother | Farmer | Minnesota |
| 15 | Ingborg Larson | 77 | Mother | — | Norway |
| 16 | William Lacomb | 58 | Head | Farmer | South Dakota |
| 17 | Anna Lacomb | 70 | Wife | — | Norway |
| 18 | George Erickson | 40 | Head | Farmer | Minnesota |
| 19 | Hans Viken | 45 | Head | Farmer | Minnesota |
| 20 | Mrs Ella Palm | 48 | Head | Farm Manager | Minnesota |
| 21 | Gladys Palm | 21 | Daughter | Farm Hand | Minnesota |
| 22 | Elaine Palm | 18 | Daughter | Farm Hand | Minnesota |
| 23 | Verna Palm | 16 | Daughter | Farm Hand | Minnesota |
| 24 | Marvin Palm | 13 | Son | — | Minnesota |
| 25 | Bert Palm | 11 | Son | — | Minnesota |
| 26 | Adolph Dahlstrom | 34 | Head | Farmer | Minnesota |
| 27 | Paul Petterson | 65 | Head | Farmer | Minnesota |
| 28 | John Johnson | 45 | Head | Farmer | Sweden |
| 29 | Alfred Gavelin | 41 | Head | Farmer | Sweden |
| 30 | Audie Gavelin | 35 | Partner | Farmer | Minnesota |
| 31 | Belinda Gavelin | 73 | Mother | — | Sweden |
| 32 | Edward E. Olsen | 61 | Head | Farmer | Norway |
| 33 | Earl J. Olsen | 30 | Son | Farmer | Minnesota |
| 34 | Le Roy Olsen | 23 | Son | Farmer | Minnesota |
| 35 | Arthur Olsen | 22 | Son | Farmer | Minnesota |
| 36 | Josie Olsen | 25 | Daughter | — | Minnesota |
| 37 | Ernest Olsen | 27 | Son | Farmer | Minnesota |
| 38 | Louis Larson THIS PERSON | 69 | Head | Farmer | Norway |
| 39 | Minnie Larson | 57 | Wife | — | Sweden |
| 40 | Carl Larson | 34 | Son | Farm Labor | Minnesota |
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)