RN
Roy Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Minnehaha-County, South Dakota
Our Model Tree links this Roy Nelson across the 1920, 1930 and 1940 US Censuses in Minnehaha-County, South Dakota (XGBoost, ~Confirmed), with identified parents Peter & Beda — first a son (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Male
Son
Born: South Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Minnehaha-County, South Dakota |
| Surname | Nelson |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Baltic town |
| 1935 Residence (County) | Minnehaha |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 150 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Mechanic |
| Township / Ward | Baltic Town |
| Est. Birth Year | ~1916 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Roy | Age | Birth yr |
|---|---|---|---|---|
| Beda Nelson | Spouse | — | 59 | ~1881 |
| Paul Johnson | Other | — | 72 | ~1868 |
| Roy Nelson | Son | — | 24 | ~1916 |
| Peder Nelson | Head | — | 60 | ~1880 |
Census Appearances
1920
Minnehaha, South …
Son, age 4
Minnehaha, South Dakota · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Sweden |
| Mother Tongue | Norwegian |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Minnehaha, South …
Son, age 14
Minnehaha, South Dakota · implied b. ~1916 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Roy J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Minnehaha-County, South …
Son, age 24
Minnehaha-County, South Dakota · implied b. ~1916 — 4 household members
| Surname | Nelson |
| Given Name | Roy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Baltic town |
| 1935 Residence (County) | Minnehaha |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 150 |
| Highest Grade | No 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 Roy Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Peter Nelson (~0.92 confidence) and mother Beda Nelson (~0.92 confidence) and mother Beda Nelson (~0.92 confidence) and mother Beda Nelson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Peter Nelson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Beda Nelson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Beda Nelson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Beda Nelson
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Roy Nelson
Son · 1940 · age 24 · b. ~1916 · South Dakota
★ 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 — Minnehaha-County, South Dakota
Open full size
1940 US Federal Census — Minnehaha-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03863-00006)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emma Quistad | 75 | Head | Housekeeper | Iowa |
| 2 | Alma Quistad | 47 | Daughter | Book Keeper | South Dakota |
| 3 | Claus T. Hegness | 68 | Head | Dealer | Iowa |
| 4 | Minnie Hegness | 63 | Wife | Housekeeper | South Dakota |
| 5 | Peter M. Troen | 50 | Head | Clergyman | Minnesota |
| 6 | Marguerite Troen | 41 | Wife | — | Michigan |
| 7 | Luther Troen | 14 | Son | — | Minnesota |
| 8 | Ruth Troen | 8 | Daughter | — | Minnesota |
| 9 | Mathilda Grevstad | 77 | Mother-in-law | — | Wisconsin |
| 10 | Phillip Kirkeby | 31 | Head | Laborer | South Dakota |
| 11 | Ruby Kirkeby | 22 | Wife | House Keeper | South Dakota |
| 12 | Bonnie M. Kirkeby | 1 | Daughter | — | South Dakota |
| 13 | John O. Arasm | 66 | Head | Laborer | South Dakota |
| 14 | Guttorm Arnston | 63 | Roomer | Laborer | Norway |
| 15 | Peder E. Nelson | 60 | Head | Operator | Norway |
| 16 | Beda Nelson | 59 | Wife | Housekeeper | Sweden |
| 17 | Roy Nelson THIS PERSON | 24 | Son | Mechanic | South Dakota |
| 18 | Paul Johnson | 72 | Boarder | Laborer | Sweden |
| 19 | Lloyd Nelson | 26 | Head | Laborer | South Dakota |
| 20 | Nelson | 33 | Wife | — | Wisconsin |
| 21 | Erick J. Oyan | 66 | Head | Manager | Norway |
| 22 | Agnes Lucille Oyan | 23 | Daughter | House Keeper | South Dakota |
| 23 | John O. Gunderson | 62 | Head | Manager | South Dakota |
| 24 | Inga Gunderson | 57 | Wife | Cook | Norway |
| 25 | Fossum | 40 | Head | Mechanic | South Dakota |
| 26 | Elsa M. Fossum | 36 | Wife | — | South Dakota |
| 27 | Ruth Fossum | 10 | Daughter | — | South Dakota |
| 28 | Patricia Fossum | 12 | Daughter | — | South Dakota |
| 29 | Gullick G. Bidne | 73 | Head | Repairing | Norway |
| 30 | Gusta Bidne | 73 | Wife | Housekeeper | Norway |
| 31 | John A. Kirkeby | 65 | Head | Laborer | Norway |
| 32 | Erik G. Brendi | None | Head | — | At Sea |
| 33 | Gerda Garley | 58 | Sister | — | South Dakota |
| 34 | Helen Garley | 18 | Niece | Odd Jobs | South Dakota |
| 35 | Allen Garley | 16 | Nephew | — | South Dakota |
| 36 | Palmer Prestibo | 48 | Head | Laborer | South Dakota |
| 37 | Olga Prestibo | 46 | Wife | House Keeper | South Dakota |
| 38 | Arline B. Prestibo | 19 | Daughter | Maid | South Dakota |
| 39 | Orpha A. Prestibo | 17 | Daughter | Odd Jobs | South Dakota |
| 40 | Donald G. Prestibo | 9 | Son | — | South Dakota |
Related Census Records
Pedigree Summary
Roy
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)