CD
Charles Duncan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Greenville-County, South Carolina
Our Model Tree links this Charles Duncan across the 1930 and 1940 US Censuses in Greenville-County, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 10-person household.
Age 17
b. ~1923
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Greenville-County, South Carolina |
| Surname | Duncan |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Bates Township |
| 1935 Residence (County) | Greenville |
| Additional Details | |
| Occupation | Bleachery |
| Industry | Textile |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 200 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Bleachery |
| Township / Ward | Bates Township |
| Est. Birth Year | ~1923 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Margaret Duncan | Daughter | — | 15 | ~1925 |
| Charles Johnston | Other | — | 16 | ~1924 |
| Troy Duncan | Son | — | 23 | ~1917 |
| Kathryn Duncan | Daughter | — | 8 | ~1932 |
| Joe Duncan | Son | — | 21 | ~1919 |
| Charles Duncan | Son | — | 17 | ~1923 |
| Hugh Duncan | Son | — | 15 | ~1925 |
| Bessie Duncan | Spouse | — | 49 | ~1891 |
| Tatan Duncan | Head | — | 50 | ~1890 |
| Claude Duncan | Son | — | 12 | ~1928 |
Census Appearances
1930
Greenville, South …
Son, age 7
Greenville, South Carolina · implied b. ~1923 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | Charles B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Greenville-County, South …
Son, age 17
Greenville-County, South Carolina · implied b. ~1923 — 10 household members
| Surname | Duncan |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Bates Township |
| 1935 Residence (County) | Greenville |
| Occupation | Bleachery |
| Industry | Textile |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 200 |
| Highest Grade | H-3 |
| 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 Charles Duncan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Duncan
Son · 1940 · age 17 · b. ~1923 · South Carolina
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Sibling
Kathryn Duncan
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Duncan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Troy Duncan
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Duncan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claude Duncan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joe Duncan
Sibling · 1940 · age 21
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 — Greenville-County, South Carolina
Open full size
1940 US Federal Census — Greenville-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03811-00256)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Norma Bane | 26 | Wife | — | South Carolina |
| 2 | Preston Bane | 3 | Son | — | South Carolina |
| 3 | Joe Ann Bane | 1 | Daughter | — | South Carolina |
| 4 | Frank Calhoun | 35 | Head | Laborer | South Carolina |
| 5 | Martha Calhoun | 32 | Wife | — | South Carolina |
| 6 | Francis Calhoun | 10 | Son | — | South Carolina |
| 7 | Kenneth Calhoun | 9 | Son | — | South Carolina |
| 8 | Clarence Calhoun | 9 | Son | — | South Carolina |
| 9 | Cora Calhoun | 6 | Daughter | — | South Carolina |
| 10 | James Duncan | 26 | Head | Bleachery | South Carolina |
| 11 | Emma Duncan | 18 | Wife | — | South Carolina |
| 12 | Bobbie Duncan | 2 | Son | — | South Carolina |
| 13 | Tatan W Duncan | 50 | Head | Laborer | South Carolina |
| 14 | Bessie Duncan | 49 | Wife | — | North Carolina |
| 15 | Troy Duncan | 23 | Son | Bleachery | South Carolina |
| 16 | Joe Ed Duncan | 21 | Son | Bleachery | South Carolina |
| 17 | Charles Duncan THIS PERSON | 17 | Son | Bleachery | South Carolina |
| 18 | Margaret Duncan | 15 | Daughter | — | South Carolina |
| 19 | Hugh Duncan | 15 | Son | — | South Carolina |
| 20 | Claude Duncan | 12 | Son | — | South Carolina |
| 21 | Kathryn Duncan | 8 | Daughter | — | South Carolina |
| 22 | Charles Johnston | 16 | Hired hand | Laborer | South Carolina |
| 23 | Walter Birdseye | 42 | Head | Laborer | South Carolina |
| 24 | Rosie Birdseye | 35 | Wife | — | South Carolina |
| 25 | Andrew Birdseye | 19 | Son | Laborer | South Carolina |
| 26 | Junior Birdseye | 15 | Son | Laborer | South Carolina |
| 27 | Robert Birdseye | 14 | Son | — | South Carolina |
| 28 | G L Birdseye | 13 | Son | — | South Carolina |
| 29 | Maggie Birdseye | 10 | Daughter | — | South Carolina |
| 30 | Mae Belle Birdseye | 10 | Daughter | — | South Carolina |
| 31 | Moby Birdseye | 3 | Daughter | — | South Carolina |
| 32 | Deloris Birdseye | 2 | Daughter | — | South Carolina |
| 33 | G H Duncan | 35 | Head | Laborer | South Carolina |
| 34 | Lola Duncan | 34 | Wife | — | South Carolina |
| 35 | Mary L Duncan | 18 | Daughter | — | South Carolina |
| 36 | Kenneth Duncan | 16 | Son | — | South Carolina |
| 37 | Mason Duncan | 12 | Son | — | South Carolina |
| 38 | W L Banks | 58 | Head | Laborer | South Carolina |
| 39 | Lara Banks | 56 | Sister | Laborer | South Carolina |
| 40 | Minnie Banks | 53 | Sister | Laborer | South Carolina |
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)