JD
John Duncan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Anderson-County, South Carolina
Our Model Tree links this John Duncan across the 1920, 1930 and 1940 US Censuses in Anderson-County, South Carolina (XGBoost, ~Confirmed), with identified parents Elizabeth & Kate — first a head (b.~1904), then head of a 3-person household.
Age 36
b. ~1904
Male
Head
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Anderson-County, South Carolina |
| Surname | Duncan |
| Given Name | John Hill |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Anderson city |
| 1935 Residence (County) | Anderson |
| Additional Details | |
| Occupation | Foreman |
| Industry | Steam Laundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1430 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Foreman |
| Township / Ward | Anderson City |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Duncan | Head | — | 36 | ~1904 |
| John Duncan | Son | — | 9 | ~1931 |
| Juanita Duncan | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Anderson, South …
Son, age 16
Anderson, South Carolina · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | Georgia |
| Mother's Birthplace | South Carolina |
| Occupation | Laborer |
| Industry | Laundry |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Anderson, South …
Son, age 26
Anderson, South Carolina · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | John H |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | Georgia |
| Mother's Birthplace | South Carolina |
| Occupation | laborer |
| Industry | Laundry |
| 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 36
Anderson-County, South Carolina · implied b. ~1904 — 3 household members
| Surname | Duncan |
| Given Name | John Hill |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Anderson city |
| 1935 Residence (County) | Anderson |
| Occupation | Foreman |
| Industry | Steam Laundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1430 |
| Highest Grade | No 7 |
| 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 John Duncan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Elizabeth Duncan (~0.92 confidence) and mother Kate Duncan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Elizabeth Duncan
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Kate Duncan
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Duncan
Head · 1940 · age 36 · b. ~1904 · 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-t0627-03785-00349)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Florie Parker | 31 | Wife | — | Georgia |
| 42 | Duel Whitworth | 24 | Boarder | Doffer | Georgia |
| 43 | James E Kelly | 5 | Son | — | South Carolina |
| 44 | Charles E Burns | 38 | Head | Electrician | South Carolina |
| 45 | Blanche W Burns | 35 | Wife | Teacher | South Carolina |
| 46 | Albert M Sharpe | 71 | Head | Salesman | South Carolina |
| 47 | Zuzule Sharpe | 65 | Wife | Teacher | South Carolina |
| 48 | Murray B Best | 41 | Head | Operator | South Carolina |
| 49 | Mertie L Best | 40 | Wife | — | South Carolina |
| 50 | Louise Best | 19 | Daughter | Saleslady | South Carolina |
| 51 | J. Earl Best | 13 | Son | — | South Carolina |
| 52 | Smith A Drennon | 45 | Head | Collector | Georgia |
| 53 | Margaret J Drennon | 43 | Wife | — | Georgia |
| 54 | Helen M Drennon | 19 | Daughter | Cora Roan Clerk | Georgia |
| 55 | Joe Stewart Drennon | 18 | Son | Helper | Georgia |
| 56 | Mary B Dickson | 48 | Head | Secretary | South Carolina |
| 57 | Sula Dickson | 43 | Sister | Secretary | South Carolina |
| 58 | Aureese W Latimer | 49 | Head | — | Florida |
| 59 | Charles A Martin | 31 | Head | Policeman | South Carolina |
| 60 | Edna M Martin | 29 | Wife | — | South Carolina |
| 61 | Ruth Maddox | 21 | Sister-in-law | Saleslady | South Carolina |
| 62 | Katherine E Duncan | 64 | Head | — | South Carolina |
| 63 | William Duncan | 27 | Son | Painter | Georgia |
| 64 | Fred Duncan | 24 | Son | Salesman | Georgia |
| 65 | John Hill Duncan THIS PERSON | 36 | Head | Foreman | South Carolina |
| 66 | Juanita Duncan | 28 | Wife | Bookkeeper | South Carolina |
| 67 | John Hill Jr Duncan | 9 | Son | — | South Carolina |
| 68 | William H Durham | 29 | Head | Carpenter | South Carolina |
| 69 | Grace J Durham | 27 | Wife | — | South Carolina |
| 70 | Connie Durham | 8 | Daughter | — | South Carolina |
| 71 | Harold Durham | 5 | Son | — | South Carolina |
| 72 | John Mcdonald | 25 | Brother-in-law | Carpenter | South Carolina |
| 73 | Harold Frye | 29 | Head | Card-Room Drawing | Georgia |
| 74 | Patricia B Frye | 30 | Wife | Winder | Georgia |
| 75 | Ernest Robinson | 32 | Head | Slop Hand | South Carolina |
| 76 | Eula Mae Robinson | 29 | Wife | Weaver | South Carolina |
| 77 | Smith C Muse | 50 | Head | Collector | North Carolina |
| 78 | Eva Lee Muse | 31 | Wife | Weaver | Georgia |
| 79 | Marshal D Muse | 17 | Son | — | South Carolina |
| 80 | Barbara Ann Muse | 13 | Daughter | — | South Carolina |
Pedigree Summary
John
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)