OC
Oscar Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Crow-Wing-County, Minnesota
Our Model Tree links this Oscar Carlson across the 1920, 1930 and 1940 US Censuses in Crow-Wing-County, Minnesota (XGBoost, ~Confirmed), with identified parents Carl & Carl — first a son (b.~1918), then head of a 8-person household.
Age 22
b. ~1918
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Crow-Wing-County, Minnesota |
| Surname | Carlson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Deerwood |
| 1935 Residence (County) | Crow Wing |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 84 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Laborer |
| Township / Ward | Deerwood |
| Est. Birth Year | ~1918 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Oscar | Age | Birth yr |
|---|---|---|---|---|
| Elsie Carlson | Spouse | — | 48 | ~1892 |
| Mildred Carlson | Daughter | — | 19 | ~1921 |
| Charlotte Carlson | Daughter | — | 17 | ~1923 |
| Chester Carlson | Son | — | 29 | ~1911 |
| Lawrence Carlson | Son | — | 27 | ~1913 |
| Carl Carlson | Head | — | 62 | ~1878 |
| Oscar Carlson | Son | — | 22 | ~1918 |
| Robert Carlson | Son | — | 11 | ~1929 |
Census Appearances
1920
Crow Wing, …
Son, age 4
Crow Wing, Minnesota · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Oscar J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Crow Wing, …
Son, age 12
Crow Wing, Minnesota · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Oscar S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Crow-Wing-County, Minnesota
Son, age 22
Crow-Wing-County, Minnesota · implied b. ~1918 — 8 household members
| Surname | Carlson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Deerwood |
| 1935 Residence (County) | Crow Wing |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 84 |
| Income (1939) | 0 |
| Highest Grade | No 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 Carl Carlson (~0.92 confidence) and father Carl Carlson (~0.92 confidence) and father Carl Carlson (~0.92 confidence) and mother Elsa Carlson (~0.92 confidence) and mother Elsie Carlson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Carl Carlson
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Carl Carlson
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Carl Carlson
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Elsa Carlson
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Elsie Carlson
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Carlson
Son · 1940 · age 22 · b. ~1918 · Minnesota
★ You are viewing this record
Sibling
Chester Carlson
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Carlson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Carlson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Carlson
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Carlson
Sibling · 1940 · age 11
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 — Crow-Wing-County, Minnesota
Open full size
1940 US Federal Census — Crow-Wing-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01916-00523)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carl O. Nelson | 51 | Head | Farmer | So. Dakota |
| 2 | Olive Nelson | 47 | Wife | — | Minnesota |
| 3 | Phillip Nelson | 19 | Son | Laborer | Minnesota |
| 4 | Donald Nelson | 17 | Son | Laborer | Minnesota |
| 5 | Carl Jr. Nelson | 15 | Son | — | Minnesota |
| 6 | Elaine Nelson | 13 | Daughter | — | Minnesota |
| 7 | Lois Nelson | 11 | Daughter | — | Minnesota |
| 8 | Ernest Larson | 56 | Head | Farmer | Sweden |
| 9 | Albina Larson | 46 | Wife | — | Sweden |
| 10 | Erick Larson | 22 | Son | Laborer | Minnesota |
| 11 | Melvin Larson | 16 | Son | — | Minnesota |
| 12 | Lillian Harrington | 39 | Head | Manager | Minnesota |
| 13 | Vance Harrington | 13 | Son | — | Minnesota |
| 14 | Peter Nordquist | 78 | Father | — | Sweden |
| 15 | Earl D. Currier | 47 | Head | Farmer | Minnesota |
| 16 | Esther Currier | 44 | Wife | — | Minnesota |
| 17 | Merriel Currier | 19 | Daughter | — | Minnesota |
| 18 | Carl Landstrom | 28 | Head | Farmer | Minnesota |
| 19 | Clara Landstrom | 62 | Mother | — | Sweden |
| 20 | Arthur Travis | 25 | Head | Farmer | N. Dakota |
| 21 | Nettie Travis | 22 | Wife | — | Minnesota |
| 22 | Lester Travis | 3 | Son | 0 | N. Dakota |
| 23 | Frank Engman | 65 | Head | Farmer | Michigan |
| 24 | Victor Engman | 63 | Brother | Laborer | Sweden |
| 25 | Louie Berg | 57 | Head | Farmer | Sweden |
| 26 | Martha Berg | 52 | Wife | — | Minnesota |
| 27 | Donald Berg | 23 | Son | Laborer | Minnesota |
| 28 | Gilbert Berg | 12 | Son | — | Minnesota |
| 29 | Dougall Macbride | 40 | Head | Farmer | New York |
| 30 | Anna Macbride | 73 | Mother | — | Pennsylvania |
| 31 | Nels Hoglund | 77 | Head | — | Sweden |
| 32 | Teckla Hoglund | 75 | Wife | — | Sweden |
| 33 | Carl D. Carlson | 62 | Head | Farmer | Sweden |
| 34 | Elsie Carlson | 48 | Wife | — | Sweden |
| 35 | Chester Carlson | 29 | Son | Attendant | Minnesota |
| 36 | Lawrence Carlson | 27 | Son | Section Hand | Minnesota |
| 37 | Oscar Carlson THIS PERSON | 22 | Son | Laborer | Minnesota |
| 38 | Mildred Carlson | 19 | Daughter | Waitress | Minnesota |
| 39 | Charlotte Carlson | 17 | Daughter | — | Minnesota |
| 40 | Robert Carlson | 11 | Son | — | Minnesota |
Pedigree Summary
Oscar + 5 siblings
Gen 1 · 5 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)