ON
Oscar Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Schoolcraft-County, Michigan
Our Model Tree links this Oscar Nelson across the 1920, 1930 and 1940 US Censuses in Schoolcraft-County, Michigan (XGBoost, ~Confirmed), with identified parents Emil & Ellen — first a son (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Schoolcraft-County, Michigan |
| Surname | Nelson |
| Given Name | Oscar G |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Manistique |
| 1935 Residence (County) | Schoolcraft |
| Additional Details | |
| Occupation | clerk |
| Industry | Retail Store |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 870 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Clerk |
| Township / Ward | Manistique |
| Est. Birth Year | ~1915 |
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 |
|---|---|---|---|---|
| Myrtle Nelson | Daughter | — | 32 | ~1908 |
| Oscar Nelson | Son | — | 25 | ~1915 |
| Ellen Nelson | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Schoolcraft, Michigan
Son, age 5
Schoolcraft, Michigan · implied b. ~1915 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Schoolcraft, Michigan
Son, age 15
Schoolcraft, Michigan · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Schoolcraft-County, Michigan
Son, age 25
Schoolcraft-County, Michigan · implied b. ~1915 — 3 household members
| Surname | Nelson |
| Given Name | Oscar G |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Manistique |
| 1935 Residence (County) | Schoolcraft |
| Occupation | clerk |
| Industry | Retail Store |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 870 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Emil Nelson (~0.92 confidence) and mother Ellen Nelson (~0.92 confidence) and mother Ellen Nelson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Emil Nelson
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Ellen Nelson
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Ellen Nelson
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Nelson
Son · 1940 · age 25 · b. ~1915 · Michigan
★ You are viewing this record
Sibling
Myrtle Nelson
Sibling · 1940 · age 32
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 — Schoolcraft-County, Michigan
Open full size
1940 US Federal Census — Schoolcraft-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01819-00236)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ellen K Nelson | 62 | wife | — | Sweden |
| 42 | Myrtle E Nelson | 32 | daughter | Clerk | Michigan |
| 43 | Oscar G Nelson THIS PERSON | 25 | son | Clerk | Michigan |
| 44 | William A Mattson | 34 | Head | Maintenance Mechanic | Norway |
| 45 | Aida R Mattson | 32 | Wife | — | Michigan |
| 46 | William Jr Mattson | 11 | son | — | Michigan |
| 47 | Gilbert W Mattson | 5 | son | — | Michigan |
| 48 | Nels Mattson | 69 | Father | Millwright | Norway |
| 49 | Edmund J La Fave | 40 | Head | Post Master | Michigan |
| 50 | Marie A La Fave | 35 | Wife | — | Michigan |
| 51 | Patrick C La Fave | 7 | son | — | Michigan |
| 52 | Daniel C La Fave | 2 | son | — | Michigan |
| 53 | James E La Fave | 0 | son | — | Michigan |
| 54 | Harold A Hughson | 32 | Head | Machinist Mechanic | Michigan |
| 55 | Hazel J Hughson | 30 | Wife | — | Michigan |
| 56 | Phyllis M Hughson | 13 | daughter | — | Michigan |
| 57 | Harold J Hughson | 12 | son | — | Michigan |
| 58 | Willie J Hughson | 10 | son | — | Michigan |
| 59 | Thomas E Hughson | 9 | son | — | Michigan |
| 60 | Donald W Hughson | 8 | son | — | Michigan |
| 61 | Charles E Hughson | 81 | father | — | Michigan |
| 62 | Andrew Carlson | 53 | Head | Lumber Piler | Finland |
| 63 | Hilda C Carlson | 47 | Wife | — | Finland |
| 64 | Sigwald A Carlson | 23 | son | Machine Operator | Michigan |
| 65 | Elsie A Carlson | 19 | daughter | Maid | Michigan |
| 66 | Bernice C Carlson | 17 | daughter | — | Michigan |
| 67 | Ealene A Carlson | 14 | daughter | — | Michigan |
| 68 | John Fredson | 57 | Head | Laborer | Finland |
| 69 | Hannah Fredson | 72 | Wife | — | Finland |
| 70 | Mary Stoor | 54 | Head | — | Finland |
| 71 | Arvid Stoor | 34 | son | Truck Driver | Michigan |
| 72 | Edith Stoor | 33 | daughter | Stenographer | Michigan |
| 73 | Stella Stoor | 19 | daughter | New Worker | Michigan |
| 74 | Clarence P Mcnamara | 38 | Head | Partner | Michigan |
| 75 | Marie K Mcnamara | 36 | Wife | — | Michigan |
| 76 | James P Mcnamara | 14 | son | — | Michigan |
| 77 | Arlene M Mcnamara | 12 | daughter | — | Michigan |
| 78 | Joyce A Mcnamara | 7 | daughter | — | Michigan |
| 79 | Robert P Mcnamara | 5 | son | — | Michigan |
| 80 | Andrew O Knopp | 48 | Head | Laborer | Michigan |
Pedigree Summary
Oscar + 1 sibling
Gen 1 · 3 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)