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Oscar Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marshall-County, Kansas
Our Model Tree links this Oscar Carlson across the 1920, 1930 and 1940 US Censuses in Marshall-County, Kansas (XGBoost, ~Confirmed), with identified parents Samuel & Carrie — first a head (b.~1904), then head of a 7-person household.
Age 36
b. ~1904
Male
Head
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marshall-County, Kansas |
| Surname | Carlson |
| Given Name | Oscar |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Murray twp |
| 1935 Residence (County) | Marshall |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Farmer |
| Township / Ward | Murray Twp |
| Est. Birth Year | ~1904 |
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 |
|---|---|---|---|---|
| Ivan Carlson | Son | — | 9 | ~1931 |
| June Carlson | Daughter | — | 5 | ~1935 |
| Mary Carlson | Spouse | — | 31 | ~1909 |
| Eugene Carlson | Son | — | 13 | ~1927 |
| Eldner Carlson | Son | — | 11 | ~1929 |
| James Carlson | Son | — | 8 | ~1932 |
| Oscar Carlson | Head | — | 36 | ~1904 |
Census Appearances
1920
Marshall, Kansas
Son, age 16
Marshall, Kansas · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Oscar R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Kansas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Marshall, Kansas
Head, age 26
Marshall, Kansas · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Oscar |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | General |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10.00 |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Marshall-County, Kansas
Head, age 36
Marshall-County, Kansas · implied b. ~1904 — 7 household members
| Surname | Carlson |
| Given Name | Oscar |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Murray twp |
| 1935 Residence (County) | Marshall |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Samuel Carlson (~0.92 confidence) and mother Carrie Carlson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Samuel Carlson
b. ~1856
Source father
● Household
· direct · ~0.92
Mother
Carrie Carlson
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Carlson
Head · 1940 · age 36 · b. ~1904 · Kansas
★ 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 — Marshall-County, Kansas
Open full size
1940 US Federal Census — Marshall-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01245-00444)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Otis Howard | 54 | Head | Farmer | Kansas |
| 2 | Mary Howard | 47 | Wife | — | Kansas |
| 3 | Luella Howard | 26 | Daughter | — | Kansas |
| 4 | Lawrence Howard | 19 | Son | — | Kansas |
| 5 | Lester Howard | 18 | Son | — | Kansas |
| 6 | Maxine Howard | 12 | Daughter | — | Kansas |
| 7 | Richard Howard | 6 | Son | — | Kansas |
| 8 | Joseph L. Glover | 65 | Head | Farmer | Indiana |
| 9 | Theron Glover | 27 | Son | Laborer | Kansas |
| 10 | James Glover | 25 | Son | Clerk | Kansas |
| 11 | Ernest Glover | 24 | Son | Clerk | Kansas |
| 12 | Marie Glover | 20 | Daughter | — | Kansas |
| 13 | Avis Glover | 17 | Daughter | — | Kansas |
| 14 | Termis Glover | 10 | Son | — | Kansas |
| 15 | Claude Carlson | 61 | Head | Farmer | Sweden |
| 16 | Beda Carlson | 60 | Wife | Laborer | Sweden |
| 17 | Everett Carlson | 30 | Son | Laborer | Kansas |
| 18 | Ben Houtzhaus | 31 | Head | Farmer | Kansas |
| 19 | Caroline Houtzhaus | 31 | Wife | — | Kansas |
| 20 | Robert L. Smith | 49 | Head | Farmer | Kansas |
| 21 | Margaret Smith | 44 | Wife | — | Kansas |
| 22 | Harlow Smith | 17 | Daughter | — | Kansas |
| 23 | Frances Smith | 15 | Daughter | — | Kansas |
| 24 | Robert Smith | 12 | Son | — | Kansas |
| 25 | Maxine Smith | 9 | Daughter | — | Kansas |
| 26 | Clinton Smith | 5 | Son | — | Kansas |
| 27 | Oscar Carlson THIS PERSON | 36 | Head | Farmer | Kansas |
| 28 | Mary Carlson | 31 | Wife | — | Kansas |
| 29 | Eugene Carlson | 13 | Son | — | Kansas |
| 30 | Eldner Carlson | 11 | Son | — | Kansas |
| 31 | Ivan Carlson | 9 | Son | — | Kansas |
| 32 | James Carlson | 8 | Son | — | Kansas |
| 33 | June Carlson | 5 | Daughter | — | Kansas |
| 34 | Sophia Witt | 65 | Head | Farmer | Kansas |
| 35 | Christine Witt | 22 | Daughter | — | Kansas |
| 36 | Joseph Kenworthy | 63 | Lodger | Laborer | Kansas |
| 37 | Frank Maddy | 47 | Head | Farmer | Kansas |
| 38 | Edith Maddy | 44 | Wife | — | Kansas |
| 39 | Nancy Maddy | 14 | Daughter | — | Kansas |
| 40 | Muriel Maddy | 9 | Son | — | Kansas |
Related Census Records
Pedigree Summary
Oscar
Gen 1 · 2 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)