OC
Oscar Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Big-Stone-County, Minnesota
Our Model Tree links this Oscar Carlson across the 1920, 1930 and 1940 US Censuses in Big-Stone-County, Minnesota (XGBoost, ~Confirmed), with identified parents Roland & Carrie — first a son (b.~1895), then head of a 7-person household.
Age 45
b. ~1895
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Big-Stone-County, Minnesota |
| Surname | Carlson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Moonshine Township |
| 1935 Residence (County) | Big Stone |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Moonshine Township |
| Est. Birth Year | ~1895 |
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 Oscar | Age | Birth yr |
|---|---|---|---|---|
| Oscar Carlson | Son | — | 45 | ~1895 |
| Carrie Carlson | Spouse | — | 73 | ~1867 |
| Oland Carlson | Head | — | 71 | ~1869 |
| Everell Lemke | Other | — | 26 | ~1914 |
| Alvina Carlson | Daughter | — | 31 | ~1909 |
| Peter Wicklund | Other | — | 67 | ~1873 |
| Alvin Carlson | Son | — | 31 | ~1909 |
Census Appearances
1920
Big Stone, …
Son, age 25
Big Stone, Minnesota · implied b. ~1895 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Big Stone, …
Son, age 36
Big Stone, Minnesota · implied b. ~1894 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Oscar T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Big-Stone-County, Minnesota
Son, age 45
Big-Stone-County, Minnesota · implied b. ~1895 — 7 household members
| Surname | Carlson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Moonshine Township |
| 1935 Residence (County) | Big Stone |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Roland Carlson (~0.92 confidence) and mother Carrie Carlson (~0.92 confidence) and father Erland Carlson (~0.92 confidence) and father Oland Carlson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Roland Carlson
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Carrie Carlson
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
Erland Carlson
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Oland Carlson
b. ~1869
Source father
● Household
· direct · ~0.92
This person
Anchor record
Oscar Carlson
Son · 1940 · age 45 · b. ~1895 · Minnesota
★ You are viewing this record
Sibling
Alvin Carlson
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvina Carlson
Sibling · 1940 · age 31
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 — Big-Stone-County, Minnesota
Open full size
1940 US Federal Census — Big-Stone-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01907-00662)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John M. Rosenberg | 48 | Head | Farmer | Minnesota |
| 2 | Loyal O. Rosenberg | 47 | Wife | — | Minnesota |
| 3 | Sylence Rosenberg | 16 | Daughter | — | Minnesota |
| 4 | Lois Rosenberg | 11 | Daughter | — | Minnesota |
| 5 | Donna Lou Rosenberg | 8 | Daughter | — | Minnesota |
| 6 | August Shelker | 50 | Hired hand | Farmer | Minnesota |
| 7 | Ora Baxter | 33 | Head | Farmer | Minnesota |
| 8 | Farelda Baxter | 27 | Wife | — | Minnesota |
| 9 | Shirley Baxter | 5 | Daughter | — | Minnesota |
| 10 | Elaine Baxter | 0 | Daughter | — | Minnesota |
| 11 | Orin Baxter | 78 | Father | — | Wisconsin |
| 12 | Lillian Baxter | 64 | Mother | Housekeeper | Minnesota |
| 13 | Basil Baxter | 23 | Brother | Farmer | Minnesota |
| 14 | Harvey Mattson | 22 | Brother-in-law | Farmer - Partner | Minnesota |
| 15 | George Darling | 56 | Partner | Farmer | Minnesota |
| 16 | Martin S. Hill | 40 | Head | Farmer | Minnesota |
| 17 | Marie Hill | 39 | Wife | — | Minnesota |
| 18 | Donna Mae Hill | 7 | Daughter | — | Minnesota |
| 19 | Oscar Hill | 54 | Brother | Farmer - Partner | Minnesota |
| 20 | Andrew Hansen | 46 | Hired hand | Laborer | Minnesota |
| 21 | Oland O. Carlson | 71 | Head | Farmer | Sweden |
| 22 | Carrie Carlson | 73 | Wife | — | Sweden |
| 23 | Oscar Carlson THIS PERSON | 45 | Son | — | Minnesota |
| 24 | Alvina Carlson | 31 | Daughter | Housekeeper | Minnesota |
| 25 | Alvin Carlson | 31 | Son | Laborer | Minnesota |
| 26 | Peter Wicklund | 67 | Brother-in-law | — | Sweden |
| 27 | Everell Lemke | 26 | Hired hand | Laborer | Minnesota |
| 28 | Victor Larson | 52 | Head | Farmer | Minnesota |
| 29 | Anna Larson | 52 | Wife | — | Minnesota |
| 30 | Marlyn Larson | 26 | Son | Farm Shop Mechanic | Minnesota |
| 31 | Vincent Larson | 23 | Son | Farmer | Minnesota |
| 32 | Alan Larson | 21 | Son | Farmer | Minnesota |
| 33 | Venell O. Olson | 43 | Head | Farmer | Nebraska |
| 34 | Roger Yost | 15 | Hired hand | Laborer | South Dakota |
| 35 | Herbert L. Williams | 32 | Head | Farmer | Minnesota |
| 36 | Freda Williams | 29 | Wife | — | Minnesota |
| 37 | Stanley Williams | 8 | Son | — | Minnesota |
| 38 | Stanley Williams | 4 | Son | — | Minnesota |
| 39 | Dale Williams | 4 | Son | — | Minnesota |
| 40 | Verna Louise Williams | 2 | Daughter | — | Minnesota |
Pedigree Summary
Oscar + 2 siblings
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)