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Louis Larson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ward-County, North Dakota
Our Model Tree links this Louis Larson across the 1930 and 1940 US Censuses in Ward-County, North Dakota (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 7-person household.
Age 46
b. ~1894
Male
Head
Born: North Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ward-County, North Dakota |
| Surname | Larson |
| Given Name | Louis B (X) |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Harrison |
| 1935 Residence (County) | Ward |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Farmer |
| Township / Ward | Harrison |
| Est. Birth Year | ~1894 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louis | Age | Birth yr |
|---|---|---|---|---|
| Allen Larson | Son | — | 7 | ~1933 |
| Lowell Larson | Son | — | 11 | ~1929 |
| Le Larson | Son | — | 22 | ~1918 |
| Doris Larson | Daughter | — | 16 | ~1924 |
| Alletta Larson | Spouse | — | 46 | ~1894 |
| Louis Larson | Head | — | 46 | ~1894 |
| Esther Larson | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Ward, North …
Head, age 36
Ward, North Dakota · implied b. ~1894 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Louis B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | North Dakota |
| Age at First Marriage | 24 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Radio Set | R |
| Veteran | No |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Ward-County, North …
Head, age 46
Ward-County, North Dakota · implied b. ~1894 — 7 household members
| Surname | Larson |
| Given Name | Louis B (X) |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Harrison |
| 1935 Residence (County) | Ward |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Larson
Head · 1940 · age 46 · b. ~1894 · North Dakota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Ward-County, North Dakota
Open full size
1940 US Federal Census — Ward-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03017-00221)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mark C Collins | 33 | Head | Truck Driver | North Dakota |
| 42 | Katherine Collins | 29 | Wife | — | Minnesota |
| 43 | Marjorie E Collins | 5 | Daughter | — | North Dakota |
| 44 | Ruth Collins | 4 | Daughter | — | North Dakota |
| 45 | William Hoppman | 35 | Hired help | Laborer | South Dakota |
| 46 | Clarence White | 63 | Head | Manager | Nebraska |
| 47 | Hattie A (B) White | 53 | Wife | — | Illinois |
| 48 | Eugene White | 22 | Son | — | North Dakota |
| 49 | Mary White | 20 | Daughter | — | North Dakota |
| 50 | Marjorie White | 19 | Daughter | — | North Dakota |
| 51 | Thomas White | 16 | Son | — | North Dakota |
| 52 | Ira White | 14 | Daughter | — | North Dakota |
| 53 | Jennie (X) Felicity | 56 | Head | — | Illinois |
| 54 | Mary Felicity | 85 | Mother | — | Ohio |
| 55 | Fred Felicity | 56 | Brother | Truck Driver | Illinois |
| 56 | Emil Vollmer | 42 | Head | Farmer | Minnesota |
| 57 | Sepha Vollmer | 33 | Wife | — | Wisconsin |
| 58 | Gerald Vollmer | 4 | Son | — | North Dakota |
| 59 | Robert Vollmer | 2 | Son | — | North Dakota |
| 60 | Ronald Vollmer | 2 | Son | — | North Dakota |
| 61 | Magnus (X) Martinson | 54 | Head | Farmer | Sweden |
| 62 | Jennie Martinson | 64 | Wife | — | Sweden |
| 63 | Ethel Martinson | 20 | Daughter | Maid | North Dakota |
| 64 | Otto (X) Nelson | 52 | Head | Farmer | North Dakota |
| 65 | Julia Nelson | 42 | Wife | — | North Dakota |
| 66 | Herbert Nelson | 15 | Son | — | North Dakota |
| 67 | Elaine Nelson | 12 | Daughter | — | North Dakota |
| 68 | Phyllis Nelson | 11 | Daughter | — | North Dakota |
| 69 | George L (X) Nelson | 51 | Head | Farmer | North Dakota |
| 70 | Blanche Nelson | 42 | Wife | — | Minnesota |
| 71 | Larry Nelson | 9 | Son | — | North Dakota |
| 72 | Terrence Nelson | 8 | Son | — | North Dakota |
| 73 | Ruth Nelson | 6 | Daughter | — | North Dakota |
| 74 | Louis B (X) Larson THIS PERSON | 46 | Head | Farmer | North Dakota |
| 75 | Alletta E Larson | 46 | Wife | — | North Dakota |
| 76 | Le Roy C Larson | 22 | Son | Farmer | North Dakota |
| 77 | Doris Larson | 16 | Daughter | — | North Dakota |
| 78 | Esther Larson | 15 | Daughter | — | North Dakota |
| 79 | Lowell B Larson | 11 | Son | — | North Dakota |
| 80 | Allen Larson | 7 | Son | — | North Dakota |
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)