CD
Charles Duncan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Charles Duncan across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents Virgil & Lura — first a head (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Duncan |
| Given Name | Charles R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | City of Culver City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Pressman |
| Industry | Motion Picture |
| Class of Worker | PW |
| Hours Worked | 13 |
| Income (1939) | 1300 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Pressman |
| Township / Ward | City Of Culver City |
| Est. Birth Year | ~1912 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Christine Duncan | Spouse | — | 30 | ~1910 |
| Donna Duncan | Daughter | — | 2 | ~1938 |
| Charles Duncan | Head | — | 28 | ~1912 |
Census Appearances
1920
Los Angeles, …
Son, age 7
Los Angeles, California · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | Carl H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Son, age 18
Los Angeles, California · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | Carl |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Head, age 28
Los-Angeles-County, California · implied b. ~1912 — 3 household members
| Surname | Duncan |
| Given Name | Charles R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | City of Culver City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Pressman |
| Industry | Motion Picture |
| Class of Worker | PW |
| Hours Worked | 13 |
| Income (1939) | 1300 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Charles Duncan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Virgil Duncan (~0.92 confidence) and mother Lura Duncan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Virgil Duncan
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Lura Duncan
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Duncan
Head · 1940 · age 28 · b. ~1912 · 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 — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00258-00373)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Moore | 65 | Head | Maintenance Man | Texas |
| 2 | Lucile Moore | 51 | Wife | — | Oklahoma |
| 3 | Ingrid Parkus | 39 | Head | Machinist | Missouri |
| 4 | Rose Parkus | 11 | Daughter | — | Missouri |
| 5 | Albert Parkus | 11 | Son | — | Missouri |
| 6 | John Dittrich | 63 | Head | Electrician | Germany |
| 7 | Rose Frederiksen | 41 | Cousin | Housekeeper | Wisconsin |
| 8 | Charles R. Duncan THIS PERSON | 28 | Head | Pressman | California |
| 9 | Christine Duncan | 30 | Wife | — | Missouri |
| 10 | Donna Duncan | 2 | Daughter | — | California |
| 11 | Weldon Selling | 30 | Head | Route Salesman | Texas |
| 12 | Maxine Selling | 20 | Wife | — | Oklahoma |
| 13 | Ernestine A. Selling | 0 | Daughter | — | California |
| 14 | Erling Holmbeck | 27 | Head | Manager | Wisconsin |
| 15 | Marjorie Holmbeck | 30 | Wife | — | Wisconsin |
| 16 | James Holmbeck | 8 | Son | — | Wisconsin |
| 17 | George Holmbeck | 3 | Son | — | California |
| 18 | Ralph Sterling | 27 | Boarder | Riveter | Missouri |
| 19 | James Lindberg | 33 | Head | Carpenter | Wyoming |
| 20 | Marie Lindberg | 29 | Wife | — | Kansas |
| 21 | James Jr. Lindberg | 2 | Son | — | California |
| 22 | Leo E. Sorensen | 29 | Head | Relief Man | Denmark |
| 23 | Mildred R. Sorensen | 28 | Wife | — | Ohio |
| 24 | Leo Jr. Sorensen | 1 | Son | — | California |
| 25 | Barbara A. Sorensen | 0 | Daughter | — | California |
| 26 | John M. Brein | 44 | Head | Property Man | Australia |
| 27 | Yvonne F. Brein | 44 | Wife | — | Australia |
| 28 | Bruce J. Brein | 18 | Son | — | California |
| 29 | Bryan J. Brein | 15 | Son | — | California |
| 30 | Kevin P. Brein | 13 | Son | — | California |
| 31 | Donna Brein | 11 | Son | — | California |
| 32 | Michael D. Brein | 9 | Son | — | California |
| 33 | George W. Chambers | 43 | Head | Automobile Mechanic | California |
| 34 | Margaret Chambers | 38 | Wife | — | New York |
| 35 | Warren Chambers | 19 | Son | Gardner | California |
| 36 | Harold Chambers | 13 | Son | Cook | California |
| 37 | Maynard Strohl | 36 | Head | Barber | Illinois |
| 38 | Henrietta Strohl | 39 | Wife | Waitress | Colorado |
| 39 | Thomas Dickson | 67 | Head | — | Scotland |
| 40 | William Duck | 27 | Nephew | Baker'S Helper | Scotland |
Pedigree Summary
Charles
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)