OC
Oscar Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Orange-County, California
Our Model Tree links this Oscar Carlson across the 1910, 1920, 1930 and 1940 US Censuses in Orange-County, California (XGBoost, ~Confirmed), with identified parents Gustaf & Charles — first a head (b.~1895), then head of a 4-person household.
Age 45
b. ~1895
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Orange-County, California |
| Surname | Carlson |
| Given Name | Oscar W. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Fullerton Township |
| 1935 Residence (County) | Orange |
| Additional Details | |
| Occupation | Foreman |
| Industry | Citrus Rancho |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Foreman |
| Township / Ward | Fullerton 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Oscar | Age | Birth yr |
|---|---|---|---|---|
| Oscar Carlson | Head | — | 45 | ~1895 |
| Bonnie Carlson | Daughter | — | 18 | ~1922 |
| Angie Carlson | Spouse | — | 42 | ~1898 |
| Shirley Carlson | Daughter | — | 13 | ~1927 |
Census Appearances
1910
Orange, California
Son, age 15
Orange, California · implied b. ~1895 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Oscar |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | California |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
Orange, California
Son, age 24
Orange, California · implied b. ~1896 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Helper |
| Industry | Fruit ranch |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Orange, California
Head, age 35
Orange, California · implied b. ~1895 — 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 | 35 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 26 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | California |
| Occupation | Laborer |
| Industry | Citrus |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Orange-County, California
Head, age 45
Orange-County, California · implied b. ~1895 — 4 household members
| Surname | Carlson |
| Given Name | Oscar W. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Fullerton Township |
| 1935 Residence (County) | Orange |
| Occupation | Foreman |
| Industry | Citrus Rancho |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Gustaf Carlson (~0.92 confidence) and father Charles Carlson (~0.92 confidence) and mother Amalia Carlson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Gustaf Carlson
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Charles Carlson
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Amalia Carlson
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Carlson
Head · 1940 · age 45 · b. ~1895 · California
★ 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 — Orange-County, California
Open full size
1940 US Federal Census — Orange-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00272-00378)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maryann Schauer | 17 | daughter | — | California |
| 2 | Peter Schauer | 15 | son | — | California |
| 3 | Oscar W. Carlson THIS PERSON | 45 | head | Foreman | California |
| 4 | Angie Carlson | 42 | wife | — | California |
| 5 | Bonnie J. Carlson | 18 | daughter | — | California |
| 6 | Shirley Carlson | 13 | daughter | — | California |
| 7 | E. H. Brunemeier | 54 | head | Physician | Iowa |
| 8 | Cora Brunemeier | 52 | wife | — | Illinois |
| 9 | Lois Brunemeier | 21 | daughter | House Work | China |
| 10 | Beth Brunemeier | 19 | daughter | Office Assistant | China |
| 11 | Faylon Brunemeier | 14 | son | — | Iowa |
| 12 | Byrd Brunemeier | 12 | son | — | China |
| 13 | Camille Allee | 40 | head | Employer | California |
| 14 | Lena May Allee | 36 | wife | — | Michigan |
| 15 | Mary Lou Allee | 9 | daughter | — | California |
| 16 | Camille N. Allee | 2 | son | — | California |
| 17 | Walter J. Spencer | 38 | head | Operator | Texas |
| 18 | Theadelia Spencer | 37 | wife | — | Texas |
| 19 | Nathan Spencer | 15 | son | — | Texas |
| 20 | A. M. Christensen | 64 | head | Operator | Denmark |
| 21 | Margaret Christensen | 23 | wife | — | Canada |
| 22 | Howard B. Christensen | 14 | son | — | California |
| 23 | Evelyn M. Christensen | 12 | daughter | — | California |
| 24 | Dr. Wilcox Christensen | 10 | son | — | California |
| 25 | James Huntley | 63 | head | Operator | California |
| 26 | Barbara Huntley | 67 | wife | — | California |
| 27 | Grace D. Key | 44 | lodger | Kindergarten Teacher | Canada |
| 28 | H. P. Clausen | 37 | head | Pumper | Oregon |
| 29 | Alma Clausen | 32 | wife | — | Oregon |
| 30 | Kenneth H. Clausen | 11 | son | — | California |
| 31 | Carol Ann Clausen | 6 | daughter | — | California |
| 32 | Pluma B. Williams | 40 | head | Salesman | Tennessee |
| 33 | Eva J. Williams | 32 | wife | — | Colorado |
| 34 | Elmer B. Williams | 10 | son | — | California |
| 35 | James W. Cahoon | 77 | head | Operator | England |
| 36 | Liza A. Cahoon | 70 | wife | — | England |
| 37 | Leonard G. Elvey | 48 | head | Operator | England |
| 38 | Jessie Elvey | 45 | wife | — | England |
| 39 | Patricia Elvey | 18 | daughter | New Worker | California |
| 40 | Grace S. Elvey | 13 | daughter | — | California |
Pedigree Summary
Oscar
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)