ON
Oscar Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Todd-County, Minnesota
Our Model Tree links this Oscar Nelson across the 1910, 1920, 1930 and 1940 US Censuses in Todd-County, Minnesota (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Todd-County, Minnesota |
| Surname | Nelson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Village of Eagle Bend |
| 1935 Residence (County) | Todd |
| Additional Details | |
| Occupation | Truck Driver |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 96 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Truck Driver |
| Township / Ward | Village Of Eagle Bend |
| Est. Birth Year | ~1910 |
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 Oscar | Age | Birth yr |
|---|---|---|---|---|
| Bessie Nelson | Head | — | 56 | ~1884 |
| Oscar Nelson | Son | — | 30 | ~1910 |
| Robert Nelson | Son | — | 26 | ~1914 |
Census Appearances
1910
Todd, Minnesota
Other, age
Todd, Minnesota · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Oscar I |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Swed. Swedish |
| Mother's Birthplace | Vermont |
| Speaks English | English |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Todd, Minnesota
Son, age 10
Todd, Minnesota · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Vermont |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Todd, Minnesota
Son, age 20
Todd, Minnesota · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Vermont |
| Occupation | Truck Driver |
| Industry | Gen Hauling |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Todd-County, Minnesota
Son, age 30
Todd-County, Minnesota · implied b. ~1910 — 3 household members
| Surname | Nelson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Village of Eagle Bend |
| 1935 Residence (County) | Todd |
| Occupation | Truck Driver |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 96 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Oscar Nelson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Nelson (~0.92 confidence) and father John Nelson (~0.92 confidence) and mother Bessie Nelson (~0.92 confidence) and mother Annie Nelson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Nelson
b. ~1876
Source father
● Household
· direct · ~0.92
Father
John Nelson
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Bessie Nelson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Annie Nelson
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Nelson
Son · 1940 · age 30 · b. ~1910 · Minnesota
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Sibling
Robert Nelson
Sibling · 1940 · age 26
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 — Todd-County, Minnesota
Open full size
1940 US Federal Census — Todd-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01964-00184)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Vernon O. Berggren | 21 | Son | Laborer | Minnesota |
| 2 | Bessie Nelson | 56 | Head | Janitress | Vermont |
| 3 | Oscar Nelson THIS PERSON | 30 | Son | Truck Driver | Minnesota |
| 4 | Robert Nelson | 26 | Son | Janitor | Minnesota |
| 5 | J. Munson Sarff | 72 | Head | — | Indiana |
| 6 | Martha Sarff | 83 | Wife | — | Indiana |
| 7 | Harry W. Wheaton | 56 | Head | Auctioneer | Pennsylvania |
| 8 | Alma Wheaton | 55 | Wife | — | South Dakota |
| 9 | Warren Wheaton | 16 | Son | — | Minnesota |
| 10 | Kenneth Murray | 27 | Son-in-law | Mechanic | Iowa |
| 11 | Sarah H. Murray | 26 | Daughter | — | North Dakota |
| 12 | Patricia A. Murray | 2 | Granddaughter | — | Minnesota |
| 13 | Beatrice J. Murray | 1 | Granddaughter | — | Minnesota |
| 14 | Elton H. Smith | 44 | Head | Physician | Minnesota |
| 15 | Myrtle S. Smith | 42 | Wife | — | Minnesota |
| 16 | Jean A. Smith | 13 | Daughter | — | Minnesota |
| 17 | Hilda S. Solid | 44 | Employee | Practical Nursing | Iowa |
| 18 | Verle Schmidt | 25 | Servant | Housework | Minnesota |
| 19 | Isidor A. Eberle | 52 | Head | Blacksmith | Minnesota |
| 20 | Alice Eberle | 44 | Wife | — | Iowa |
| 21 | Florain Colling | 29 | Lodger | Blacksmith | Minnesota |
| 22 | Albert H. Cowles | 62 | Head | Laborer | Wisconsin |
| 23 | Florence Cowles | 58 | Wife | — | Wisconsin |
| 24 | William Jahnke | 36 | Head | Laborer | Minnesota |
| 25 | Frieda Jahnke | 32 | Wife | — | Minnesota |
| 26 | Arlene Jahnke | 11 | Daughter | — | Minnesota |
| 27 | Arvilla Jahnke | 10 | Daughter | — | Minnesota |
| 28 | Chester Jahnke | 7 | Son | — | Minnesota |
| 29 | Darraine Jahnke | 4 | Daughter | — | Minnesota |
| 30 | Betty Jane Jahnke | 2 | Daughter | — | Minnesota |
| 31 | Thomas Slay | 81 | Head | — | Wisconsin |
| 32 | Jetta Slay | 68 | Wife | — | Norway |
| 33 | Les Sly | 30 | Head | Laborer | Minnesota |
| 34 | Gladys C. Sly | 26 | Wife | — | Minnesota |
| 35 | Larry D. Sly | 3 | Son | — | Minnesota |
| 36 | Thomas J. Sly | 2 | Son | — | Minnesota |
| 37 | Dale L. Sly | 0 | Son | — | Minnesota |
| 38 | Othma Ghaleen | 38 | Head | — | Minnesota |
| 39 | Irene Ghaleen | 15 | Daughter | — | Minnesota |
| 40 | Gordon Ghaleen | 13 | Son | — | Minnesota |
Pedigree Summary
Oscar + 1 sibling
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)