RC
Richard Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Darke-County, Ohio
Our Model Tree links this Richard Campbell across the 1930 and 1940 US Censuses in Darke-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Darke-County, Ohio |
| Surname | Campbell |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Allen township |
| 1935 Residence (County) | Darke |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Allen Township |
| Est. Birth Year | ~1929 |
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 Richard | Age | Birth yr |
|---|---|---|---|---|
| Eugene Campbell | Son | — | 19 | ~1921 |
| Patty Campbell | Son | — | 14 | ~1926 |
| Betty Campbell | Daughter | — | 12 | ~1928 |
| Richard Campbell | Son | — | 11 | ~1929 |
| Frank Campbell | Head | — | 57 | ~1883 |
| Jake Campbell | Son | — | 20 | ~1920 |
| Eleanor Campbell | Son | — | 17 | ~1923 |
| Maude Campbell | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Darke, Ohio
Son, age 1
Darke, Ohio · implied b. ~1929 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Darke-County, Ohio
Son, age 11
Darke-County, Ohio · implied b. ~1929 — 8 household members
| Surname | Campbell |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Allen township |
| 1935 Residence (County) | Darke |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Richard Campbell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Richard Campbell
Son · 1940 · age 11 · b. ~1929 · Ohio
★ You are viewing this record
Sibling
Eugene Campbell
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patty Campbell
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Campbell
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Campbell
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jake 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 — Darke-County, Ohio
Open full size
1940 US Federal Census — Darke-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03060-00103)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arlene Sellers | 3 | Daughter | — | Ohio |
| 42 | Witt D Berry | 64 | Head | — | Ohio |
| 43 | Charles R Moyer | 52 | Head | — | Ohio |
| 44 | Kathryn Moyer | 50 | Wife | — | Ohio |
| 45 | Charles D Sanders | 24 | Head | Laborer | Ohio |
| 46 | Mary Sanders | 21 | Wife | — | Ohio |
| 47 | John Sanders | 2 | Son | — | Ohio |
| 48 | Eli D Miller | 73 | Head | Farmer | Ohio |
| 49 | A. C. Miller | 72 | Wife | — | Ohio |
| 50 | Lloyd H Taylor | 36 | Head | Farmer | Indiana |
| 51 | Anna May Taylor | 30 | Wife | — | Indiana |
| 52 | Joan Taylor | 9 | Daughter | — | Ohio |
| 53 | Harvey Hittle | 66 | Head | Farmer | Ohio |
| 54 | Mary Hittle | 59 | Wife | — | Ohio |
| 55 | Owen Hittle | 14 | Son | Farmer | Ohio |
| 56 | Bill Hittle | 10 | Son | — | Ohio |
| 57 | Sam R Gibson | 62 | Head | Farmer | Ohio |
| 58 | Bertha Gibson | 60 | Wife | — | Ohio |
| 59 | August Singer | 57 | Head | Farmer | Ohio |
| 60 | Nina L Singer | 56 | Wife | — | Ohio |
| 61 | Ben Singer | 22 | Son | Farmer | Ohio |
| 62 | Carl Singer | 20 | Son | Farmer | Ohio |
| 63 | Bob Singer | 16 | Son | — | Ohio |
| 64 | Margaret Singer | 14 | Daughter | — | Ohio |
| 65 | Thomas Singer | 11 | Son | — | Ohio |
| 66 | Michel J Sibler | 70 | Head | Farmer | Ohio |
| 67 | Sarah Sibler | 65 | Wife | — | Ohio |
| 68 | Louise Sibler | 20 | Daughter | — | Ohio |
| 69 | Frank Campbell | 57 | Head | Farmer | Kentucky |
| 70 | Maude Campbell | 52 | Wife | — | Kentucky |
| 71 | Jake Campbell | 20 | Son | Farmer | Kentucky |
| 72 | Eugene Campbell | 19 | Son | Farmer | Ohio |
| 73 | Eleanor Campbell | 17 | Son | — | Ohio |
| 74 | Patty Campbell | 14 | Son | — | Ohio |
| 75 | Betty Jo Campbell | 12 | Daughter | — | Ohio |
| 76 | Richard Campbell THIS PERSON | 11 | Son | — | Ohio |
| 77 | Charles D Price | 51 | Head | Farmer | Ohio |
| 78 | Edith Price | 44 | Wife | — | Ohio |
| 79 | Clayton Price | 24 | Son | Trucker | Ohio |
| 80 | Anthony Price | 27 | Son | Farmer | Pennsylvania |
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)