LN
Louis Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cascade-County, Montana
Our Model Tree links this Louis Nelson across the 1920, 1930 and 1940 US Censuses in Cascade-County, Montana (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 6-person household.
Age 46
b. ~1894
Male
Head
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cascade-County, Montana |
| Surname | Nelson |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Ulm School Dist #8 |
| 1935 Residence (County) | Cascade |
| Additional Details | |
| Occupation | Foreman |
| Industry | Road Building |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1810 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Foreman |
| Township / Ward | Ulm School Dist 8 |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louis | Age | Birth yr |
|---|---|---|---|---|
| Ellen Nelson | Spouse | — | 46 | ~1894 |
| Marshall Nelson | Son | — | 26 | ~1914 |
| Una Nelson | Daughter | — | 11 | ~1929 |
| Curtis Nelson | Son | — | 19 | ~1921 |
| Elda Nelson | Daughter | — | 14 | ~1926 |
| Louis Nelson | Head | — | 46 | ~1894 |
Census Appearances
1920
Cascade, Montana
Head, age 26
Cascade, Montana · implied b. ~1894 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Fireman |
| Industry | Railroad Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Cascade, Montana
Head, age 36
Cascade, Montana · implied b. ~1894 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 20 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Fireman |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 15.00 |
| Veteran | No |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Cascade-County, Montana
Head, age 46
Cascade-County, Montana · implied b. ~1894 — 6 household members
| Surname | Nelson |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Ulm School Dist #8 |
| 1935 Residence (County) | Cascade |
| Occupation | Foreman |
| Industry | Road Building |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1810 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south 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 Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Nelson
Head · 1940 · age 46 · b. ~1894 · Montana
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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 — Cascade-County, Montana
Open full size
1940 US Federal Census — Cascade-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02215-00494)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis Nelson THIS PERSON | 46 | Head | Foreman | South Dakota |
| 2 | Ellen R. Nelson | 46 | Wife | — | South Dakota |
| 3 | Marshall V. Nelson | 26 | Son | Laborer | South Dakota |
| 4 | Curtis H. Nelson | 19 | Son | Laborer | Montana |
| 5 | Elda L. Nelson | 14 | Daughter | — | Montana |
| 6 | Una J. Nelson | 11 | Daughter | — | Montana |
| 7 | John C. Crowley | 82 | Head | Farmer | Canada Eng |
| 8 | Flora Crowley | 74 | Wife | — | Norway |
| 9 | Joseph F. Justice | 25 | Hired hand | Farm Hand | Minnesota |
| 10 | Matilda S. Donnelly | 58 | Head | Proprietor | Switzerland |
| 11 | Robert A. Donnelly | 29 | Son | Operator | Montana |
| 12 | William Sisko | 53 | Head | Farmer | Poland |
| 13 | Bessie Sisko | 60 | Wife | — | Poland |
| 14 | Sanford Hicks | 52 | Head | Laborer | Missouri |
| 15 | Lucy Hicks | 40 | Wife | — | Illinois |
| 16 | Evert L. Hicks | 21 | Son | Laborer | Montana |
| 17 | Clifford C. Hicks | 19 | Son | Laborer | Montana |
| 18 | Norman C. Hicks | 14 | Son | — | Montana |
| 19 | Shirley M. Hicks | 9 | Daughter | — | Montana |
| 20 | Robert W. Hicks | 6 | Son | — | Montana |
| 21 | Donald C. Hicks | 3 | Son | — | Montana |
| 22 | Albert J. Hasting | 39 | Head | Farmer | Washington |
| 23 | Janette V. Hasting | 39 | Wife | — | Montana |
| 24 | Robert J. Hasting | 17 | Son | — | Montana |
| 25 | Joyce F. Hasting | 14 | Daughter | — | Montana |
| 26 | Shirley A. Hasting | 8 | Daughter | — | Montana |
| 27 | Warren R. Hasting | 5 | Son | — | Montana |
| 28 | Ferdinand Meiser | 38 | Hired hand | Farm Hand | North Dakota |
| 29 | Andrew Pattaner | 26 | Head | Farmer | Montana |
| 30 | William F. Collins | 43 | Head | Laborer | Montana |
| 31 | Florence Collins | 27 | Wife | — | Montana |
| 32 | Donald W. Collins | 14 | Son | — | Montana |
| 33 | Fredlynn Collins | 3 | Son | — | Montana |
| 34 | William J. Fox | 23 | Son-in-law | — | Montana |
| 35 | Fred V. Oliver | 20 | Brother-in-law | Laborer | Montana |
| 36 | Charles A. Sullivan | 26 | Head | Carpenter | Montana |
| 37 | Mary E. Sullivan | 25 | Wife | — | Montana |
| 38 | Gary G. Sullivan | 2 | Son | — | Montana |
| 39 | George T. Vierthaler | 43 | Head | Farmer | Montana |
| 40 | Marion J. Vierthaler | 38 | Wife | — | Montana |
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)