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William Harper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rockcastle-County, Kentucky
Our Model Tree links this William Harper across the 1930 and 1940 US Censuses in Rockcastle-County, Kentucky (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rockcastle-County, Kentucky |
| Surname | Harper |
| Given Name | William C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mt. Vernon Town |
| 1935 Residence (County) | Rockcastle |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Mt Vernon Town |
| Est. Birth Year | ~1920 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Marcella Harper | Daughter | — | 7 | ~1933 |
| Betty Harper | Daughter | — | 5 | ~1935 |
| Margaret Harper | Daughter | — | 16 | ~1924 |
| Juanita Harper | Daughter | — | 12 | ~1928 |
| John Harper | Daughter | — | 1 | ~1939 |
| Ocher Harper | Head | — | 41 | ~1899 |
| William Harper | Son | — | 20 | ~1920 |
| Paul Harper | Son | — | 3 | ~1937 |
| Grace Harper | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Rockcastle, Kentucky
Son, age 9
Rockcastle, Kentucky · implied b. ~1921 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | William T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Rockcastle-County, Kentucky
Son, age 20
Rockcastle-County, Kentucky · implied b. ~1920 — 9 household members
| Surname | Harper |
| Given Name | William C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mt. Vernon Town |
| 1935 Residence (County) | Rockcastle |
| Highest Grade | Hs 3 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 William Harper across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Harper
Son · 1940 · age 20 · b. ~1920 · Kentucky
★ You are viewing this record
Sibling
Betty Harper
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Harper
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Juanita Harper
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marcella Harper
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Harper
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Harper
Sibling · 1940 · age 3
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 — Rockcastle-County, Kentucky
Open full size
1940 US Federal Census — Rockcastle-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01353-00112)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles B. Nicely | 47 | Head | Proprietor | Kentucky |
| 2 | Sinnie Nicely | 48 | Wife | — | Kentucky |
| 3 | Brilla Rose Nicely | 16 | Daughter | — | Kentucky |
| 4 | Ada Doris Nicely | 14 | Daughter | — | Kentucky |
| 5 | Charles Jr. Nicely | 10 | Son | — | Kentucky |
| 6 | Ruth Nicely | 7 | Daughter | — | Kentucky |
| 7 | Lois Nicely | 3 | Daughter | — | Kentucky |
| 8 | Mary Nicely | 2 | Daughter | — | Kentucky |
| 9 | Fred Owens | 48 | Head | Electrician | Kentucky |
| 10 | Lula Owens | 49 | Wife | — | Kentucky |
| 11 | Oscar D. Bryant | 58 | Head | Radio Repairman | Kentucky |
| 12 | Mary C. Bryant | 50 | Wife | Clerk | Virginia |
| 13 | Clatina Hicks | 32 | Lodger | Teacher | Kentucky |
| 14 | Fritz Krueger | 26 | Head | Lawyer | Kentucky |
| 15 | Carrie Lee Krueger | 26 | Wife | Supervisor | Georgia |
| 16 | Daniel Krueger | 0 | Son | — | Kentucky |
| 17 | Willis A. Mckenzie | 49 | Head | Manager | Kentucky |
| 18 | Edna Grace Mckenzie | 23 | Daughter | Teacher | Kentucky |
| 19 | Robert C. Hoff | 53 | Head | Chemist | Pennsylvania |
| 20 | Dorothy Hoff | 28 | Daughter | Teacher | Pennsylvania |
| 21 | Kathleen Phillips | 37 | Lodger | Teacher | Kentucky |
| 22 | Myrtle Lunsford | 52 | House-k | House Keeper | Kentucky |
| 23 | William G. Simpson | 31 | Head | Editor | Missouri |
| 24 | Madeline Simpson | 28 | Wife | — | Missouri |
| 25 | Betty Jo Simpson | 7 | Daughter | — | Missouri |
| 26 | Verdon R. Griffith | 33 | Head | Proprietor | Kentucky |
| 27 | Lela Mae Griffith | 28 | Wife | — | Kentucky |
| 28 | Marie Hamlin Griffith | 12 | Daughter | — | Kentucky |
| 29 | Ocher Harper | 41 | Head | Chauffer | Kentucky |
| 30 | Grace Harper | 40 | Wife | — | Kentucky |
| 31 | William C. Harper THIS PERSON | 20 | Son | — | Kentucky |
| 32 | Margaret Harper | 16 | Daughter | — | Kentucky |
| 33 | Juanita Harper | 12 | Daughter | — | Kentucky |
| 34 | Marcella Harper | 7 | Daughter | — | Kentucky |
| 35 | Paul Dean Harper | 3 | Son | — | Kentucky |
| 36 | Betty Jane Harper | 5 | Daughter | — | Kentucky |
| 37 | John Harper | 1 | Daughter | — | Kentucky |
| 38 | Cecil Purcell | 40 | Head | Barber | Kentucky |
| 39 | Flora Mae Purcell | 35 | Wife | — | Kentucky |
| 40 | Billy Purcell | 15 | Son | — | Kentucky |
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)