RD
Robert Duncan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Anderson-County, South Carolina
Our Model Tree links this Robert Duncan across the 1920, 1930 and 1940 US Censuses in Anderson-County, South Carolina (XGBoost, ~Confirmed), with identified parents John & Essie — first a head (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Head
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Anderson-County, South Carolina |
| Surname | Duncan |
| Given Name | Robert W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Appleton Mill |
| 1935 Residence (County) | Anderson |
| Additional Details | |
| Occupation | runer grigg |
| Industry | cotton mill |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 630 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Runer Grigg |
| Township / Ward | Appleton Mill |
| 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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Etrula Duncan | Daughter | — | 8 | ~1932 |
| Etrula Duncan | Spouse | — | 26 | ~1914 |
| Robert Duncan | Head | — | 28 | ~1912 |
Census Appearances
1920
Anderson, South …
Son, age 7
Anderson, South Carolina · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Anderson, South …
Son, age 18
Anderson, South Carolina · implied b. ~1912 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Slasher |
| Industry | Cotton Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Anderson-County, South …
Head, age 28
Anderson-County, South Carolina · implied b. ~1912 — 3 household members
| Surname | Duncan |
| Given Name | Robert W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Appleton Mill |
| 1935 Residence (County) | Anderson |
| Occupation | runer grigg |
| Industry | cotton mill |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 630 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 Robert Duncan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Duncan (~0.92 confidence) and mother Essie Duncan (~0.92 confidence) and father Edward Duncan (~0.92 confidence) and mother Lois Duncan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Duncan
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Essie Duncan
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
Edward Duncan
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Lois Duncan
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Duncan
Head · 1940 · age 28 · b. ~1912 · South Carolina
★ 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 — Anderson-County, South Carolina
Open full size
1940 US Federal Census — Anderson-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03786-00268)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Manley M. Dyer | 29 | Head | Dry Cana | South Carolina |
| 2 | Nettie Ruth Dyer | 26 | Wife | Spinner | Georgia |
| 3 | Charles T. Dyer | 5 | Son | — | South Carolina |
| 4 | Viola M. Dyer | 3 | Daughter | — | South Carolina |
| 5 | Malcolm Brown | 44 | Head | — | Georgia |
| 6 | Lilla M. Brown | 46 | Wife | — | Georgia |
| 7 | Malcolm Brown | 20 | Son | Bleachery | South Carolina |
| 8 | Isaac David Brown | 17 | Son | — | South Carolina |
| 9 | Gloria C. Brown | 14 | Daughter | — | South Carolina |
| 10 | Floyd Bowen | 29 | Head | Weaver | Georgia |
| 11 | Blanch Bowen | 28 | Wife | Spinner | Georgia |
| 12 | Doris Bowen | 8 | Daughter | — | South Carolina |
| 13 | David Bowen | 5 | Son | — | South Carolina |
| 14 | R. E. Gaines | 28 | Head | Oiler | South Carolina |
| 15 | Eula Gaines | 22 | Wife | Spinner | Georgia |
| 16 | Charles Gaines | 9 | Son | — | South Carolina |
| 17 | S. T. Gunter | 25 | Head | Weaver | South Carolina |
| 18 | Rosa L. Gunter | 24 | Wife | — | South Carolina |
| 19 | S. T. Jr. Gunter | 4 | Son | — | South Carolina |
| 20 | David Gunter | 1 | Son | — | South Carolina |
| 21 | L. Pickens Allen | 30 | Head | Bleachery | Georgia |
| 22 | Mae Allen | 25 | Wife | Inspect Cloth | South Carolina |
| 23 | Grover Vaughn | 37 | Head | Slaping | South Carolina |
| 24 | Eunice Vaughn | 32 | Wife | Cloth Room | South Carolina |
| 25 | Frances Vaughn | 6 | Daughter | — | South Carolina |
| 26 | Jerry Vaughn | 2 | Son | — | South Carolina |
| 27 | Robert W. Duncan THIS PERSON | 28 | Head | Runer Grigg | South Carolina |
| 28 | Etrula Duncan | 26 | Wife | Spinner | Georgia |
| 29 | Etrula F. Duncan | 8 | Daughter | — | South Carolina |
| 30 | Lois Chander | 34 | Head | Weaver | South Carolina |
| 31 | Enie Lee Chander | 15 | Daughter | — | South Carolina |
| 32 | Dave Hendrick | 34 | Head | Oil Naper | Georgia |
| 33 | Louise Hendrick | 27 | Wife | — | Georgia |
| 34 | Essie Mae Hendrick | 6 | Daughter | — | South Carolina |
| 35 | Dave Jr. Hendrick | 4 | Son | — | South Carolina |
| 36 | Hannietta Hendrick | 13 | Stepchild | — | South Carolina |
| 37 | Earnest L. Bowen | 50 | Head | Weaver | South Carolina |
| 38 | Maude Bowen | 46 | Wife | — | South Carolina |
| 39 | Hallie Bowen | 21 | Daughter | Weaver | South Carolina |
| 40 | R. M. Bowen | 16 | Son | — | South Carolina |
Pedigree Summary
Robert
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)