RD
Robert Duncan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Buckingham-County, Virginia
Our Model Tree links this Robert Duncan across the 1930 and 1940 US Censuses in Buckingham-County, Virginia (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Male
Son
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Buckingham-County, Virginia |
| Surname | Duncan |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Slate River District |
| 1935 Residence (County) | Buckingham |
| Additional Details | |
| Highest Grade | G 6 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Slate River District |
| Est. Birth Year | ~1926 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Mary Duncan | Daughter | — | 11 | ~1929 |
| Mildred Duncan | Daughter | — | 7 | ~1933 |
| Claud Duncan | Son | — | 17 | ~1923 |
| Mildred Duncan | Spouse | — | 50 | ~1890 |
| Blanche Duncan | Daughter | — | 19 | ~1921 |
| Richard Duncan | Son | — | 15 | ~1925 |
| George Duncan | Head | — | 53 | ~1887 |
| Robert Duncan | Son | — | 14 | ~1926 |
Census Appearances
1930
Buckingham, Virginia
Son, age 3
Buckingham, Virginia · implied b. ~1927 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | Robert W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Buckingham-County, Virginia
Son, age 14
Buckingham-County, Virginia · implied b. ~1926 — 8 household members
| Surname | Duncan |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Slate River District |
| 1935 Residence (County) | Buckingham |
| Highest Grade | G 6 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Duncan
Son · 1940 · age 14 · b. ~1926 · Virginia
★ You are viewing this record
Sibling
Richard Duncan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claud Duncan
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Duncan
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Blanche Duncan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Duncan
Sibling · 1940 · age 11
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 — Buckingham-County, Virginia
Open full size
1940 US Federal Census — Buckingham-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04252-00337)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Virginia Ballone | 12 | Daughter | — | Virginia |
| 2 | Norman Ballone | 8 | Son | — | Virginia |
| 3 | Marjorie Ballone | 19 | Daughter | — | Virginia |
| 4 | Richard Ballone | 0 | Grandson | — | Virginia |
| 5 | George Ballowe | 25 | Head | Laborer | Virginia |
| 6 | Christine Ballowe | 19 | Wife | — | Virginia |
| 7 | George W. Duncan | 53 | Head | Farmer | Virginia |
| 8 | Mildred Duncan | 50 | Wife | — | Virginia |
| 9 | Blanche Duncan | 19 | Daughter | New Worker | Virginia |
| 10 | Claud Duncan | 17 | Son | Laborer | Virginia |
| 11 | Richard Duncan | 15 | Son | — | Virginia |
| 12 | Robert Duncan THIS PERSON | 14 | Son | — | Virginia |
| 13 | Mary Duncan | 11 | Daughter | — | Virginia |
| 14 | Mildred Duncan | 7 | Daughter | — | Virginia |
| 15 | Charlie Ballowe | 31 | Head | Section-Foreman | Virginia |
| 16 | Ruby Ballowe | 21 | Daughter | — | Virginia |
| 17 | Kenneth Ballowe | 3 | Grandson | — | Virginia |
| 18 | Joshua Beasley | 86 | Father-in-law | — | Virginia |
| 19 | Mason D. Duncan | 20 | Son | Laborer | Virginia |
| 20 | Scott D. Watkins | 28 | Head | Farmer | Virginia |
| 21 | Curtis Turner | 52 | Nephew | — | Virginia |
| 22 | Katherine Fountain | 15 | Niece | — | West Virginia |
| 23 | John Hackett | 53 | Head | Laborer | Virginia |
| 24 | Emma Hackett | 39 | Wife | — | Virginia |
| 25 | Ramon Hackett | 13 | Son | — | Virginia |
| 26 | Lillian Hackett | 11 | Daughter | — | Virginia |
| 27 | Dorothy Hackett | 10 | Daughter | — | Virginia |
| 28 | Katie Hackett | 9 | Daughter | — | Virginia |
| 29 | Otis Hackett | 7 | Son | — | Virginia |
| 30 | Henry Hackett | 5 | Son | — | Virginia |
| 31 | Sidney Adcock | 50 | Head | Laborer | Virginia |
| 32 | Mary Adcock | 52 | Wife | — | Virginia |
| 33 | Andrew Adcock | 22 | Head | Laborer | Virginia |
| 34 | Ruth Adcock | 22 | Wife | — | Virginia |
| 35 | Edward Adcock | 4 | Son | — | Virginia |
| 36 | Lawrence Adcock | 2 | Son | — | Virginia |
| 37 | Agnes Adcock | 0 | Daughter | — | Virginia |
| 38 | Paul Adcock | 28 | Head | Laborer | Virginia |
| 39 | Mabel Adcock | 21 | Wife | — | Virginia |
| 40 | Franklin Adcock | 6 | Son | — | Virginia |
Related Census Records
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)