DC
David Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Unicoi-County, Tennessee
Our Model Tree links this David Campbell across the 1930 and 1940 US Censuses in Unicoi-County, Tennessee (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 12-person household.
Age 14
b. ~1926
Male
Son
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Unicoi-County, Tennessee |
| Surname | Campbell |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Civil District No. 2 |
| 1935 Residence (County) | Unicoi |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Township / Ward | Civil District No 2 |
| 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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Roy Campbell | Son | — | 20 | ~1920 |
| Mary Campbell | Daughter | — | 19 | ~1921 |
| Bertha Campbell | Daughter | — | 17 | ~1923 |
| Ralph Campbell | Son | — | 6 | ~1934 |
| Robert Vance | Other | — | 26 | ~1914 |
| Edith Campbell | Daughter | — | 4 | ~1936 |
| David Campbell | Son | — | 14 | ~1926 |
| James Campbell | Head | — | 49 | ~1891 |
| Harvey Campbell | Son | — | 9 | ~1931 |
| Lucy Campbell | Daughter | — | 12 | ~1928 |
| Johnny Campbell | Son | — | 24 | ~1916 |
| Frank Campbell | Son | — | 15 | ~1925 |
Census Appearances
1930
Unicoi, Tennessee
Son, age 3
Unicoi, Tennessee · implied b. ~1927 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Kentucky |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Unicoi-County, Tennessee
Son, age 14
Unicoi-County, Tennessee · implied b. ~1926 — 12 household members
| Surname | Campbell |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Civil District No. 2 |
| 1935 Residence (County) | Unicoi |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 David Campbell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
David Campbell
Son · 1940 · age 14 · b. ~1926 · Tennessee
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Sibling
Bertha Campbell
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Campbell
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Johnny Campbell
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harvey Campbell
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Campbell
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Campbell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucy Campbell
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Campbell
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Campbell
Sibling · 1940 · age 20
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 — Unicoi-County, Tennessee
Open full size
1940 US Federal Census — Unicoi-County, Tennessee
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-03941-00222)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry Honeycutt | 26 | Head | Farmer | North Carolina |
| 2 | Oreada Honeycutt | 19 | Wife | — | Ohio |
| 3 | Henry Jr Honeycutt | 2 | Son | — | North Carolina |
| 4 | Fred D Honeycutt | 0 | Son | — | North Carolina |
| 5 | James P Campbell | 49 | Head | Farmer | Tennessee |
| 6 | Johnny Campbell | 24 | Son | Operator | Tennessee |
| 7 | Roy Campbell | 20 | Son | Newsworker | Virginia |
| 8 | Mary Lou Campbell | 19 | Daughter | Housekeeper | Tennessee |
| 9 | Bertha Campbell | 17 | Daughter | — | Tennessee |
| 10 | Frank Campbell | 15 | Son | — | Tennessee |
| 11 | David Campbell THIS PERSON | 14 | Son | — | Tennessee |
| 12 | Lucy Campbell | 12 | Daughter | — | Tennessee |
| 13 | Harvey Campbell | 9 | Son | — | Tennessee |
| 14 | Ralph Campbell | 6 | Son | — | Tennessee |
| 15 | Edith Campbell | 4 | Daughter | — | Tennessee |
| 16 | Robert Vance | 26 | Step-son | Painter | North Carolina |
| 17 | Jake Woodby | 31 | Head | Farmer | Tennessee |
| 18 | Eloise Woodby | 29 | Wife | — | North Carolina |
| 19 | Willard Woodby | 10 | Son | — | Tennessee |
| 20 | Velma Woodby | 7 | Daughter | — | North Carolina |
| 21 | Fern Woodby | 5 | Daughter | — | North Carolina |
| 22 | Ira Barry | 18 | Daughter | — | Tennessee |
| 23 | Pancie Davis | 53 | Head | — | North Carolina |
| 24 | Rachel Davis | 49 | Wife | — | Tennessee |
| 25 | Frank Davis | 20 | Son | Farmer | Tennessee |
| 26 | Lawrence Davis | 13 | Son | — | North Carolina |
| 27 | Millard Davis | 11 | Son | — | Tennessee |
| 28 | Ralph Davis | 8 | Son | — | Tennessee |
| 29 | Joe Woodby | 66 | Head | Farmer | North Carolina |
| 30 | Jane Woodby | 65 | Wife | — | Tennessee |
| 31 | Dave Woodby | 24 | Son | Farmer | Tennessee |
| 32 | Jim Woodby | 20 | Son | Farmer | Tennessee |
| 33 | Eva Woodby | 17 | Daughter | — | Tennessee |
| 34 | Elery Grindstaff | 17 | Grand-son | Farmer | Tennessee |
| 35 | Ruth Woodby | 7 | Daughter | — | Tennessee |
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)