RC
Ralph Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Harlan-County, Kentucky
Our Model Tree links this Ralph Clark across the 1930 and 1940 US Censuses in Harlan-County, Kentucky (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Harlan-County, Kentucky |
| Surname | Clark |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Dist #2 |
| 1935 Residence (County) | Harlan |
| Additional Details | |
| Highest Grade | No 1 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Dist 2 |
| Est. Birth Year | ~1928 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Pauline Clark | Daughter | — | 7 | ~1933 |
| Dovie Clark | Daughter | — | 10 | ~1930 |
| Cora Clark | Spouse | — | 38 | ~1902 |
| Gillard Clark | Son | — | 5 | ~1935 |
| Ray Clark | Son | — | 14 | ~1926 |
| Willie Clark | Son | — | 18 | ~1922 |
| Anthony Clark | Head | — | 48 | ~1892 |
| Ralph Clark | Son | — | 12 | ~1928 |
| Rosa Clark | Daughter | — | 16 | ~1924 |
| Geneva Clark | Daughter | — | 2 | ~1938 |
Census Appearances
1930
Harlan, Kentucky
Son, age 1
Harlan, Kentucky · implied b. ~1929 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ralph |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| 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
Harlan-County, Kentucky
Son, age 12
Harlan-County, Kentucky · implied b. ~1928 — 10 household members
| Surname | Clark |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Dist #2 |
| 1935 Residence (County) | Harlan |
| Highest Grade | No 1 |
| 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 Ralph Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ralph Clark
Son · 1940 · age 12 · b. ~1928 · Kentucky
★ You are viewing this record
Sibling
Dovie Clark
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geneva Clark
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosa Clark
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Clark
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ray Clark
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Clark
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gillard Clark
Sibling · 1940 · age 5
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 — Harlan-County, Kentucky
Open full size
1940 US Federal Census — Harlan-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01314-00106)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ray O. Griffin | 24 | Head | Coal Loader | Kentucky |
| 42 | Lyda Griffin | 24 | Wife | — | Kentucky |
| 43 | Ronny Griffin | 3 | Son | — | Kentucky |
| 44 | Campbell S. Bush | 56 | Head | Mine Timberer | Kentucky |
| 45 | Cornie Bush | 50 | Wife | — | Virginia |
| 46 | David Bush | 18 | Son | Farm Labor | Kentucky |
| 47 | Junior Bush | 16 | Son | Laborer | Kentucky |
| 48 | Hortence Bush | 14 | Daughter | — | Kentucky |
| 49 | Ruby Bush | 12 | Daughter | — | Kentucky |
| 50 | J. Floyd Bush | 10 | Son | — | Kentucky |
| 51 | Ira Clark | 35 | Lodger | Laborer | Kentucky |
| 52 | Anthony Clark | 48 | Head | Coal Loader | Kentucky |
| 53 | Cora Clark | 38 | Wife | — | Kentucky |
| 54 | Willie Clark | 18 | Son | Farm | Kentucky |
| 55 | Rosa Clark | 16 | Daughter | — | Kentucky |
| 56 | Ray Clark | 14 | Son | — | Kentucky |
| 57 | Ralph Clark THIS PERSON | 12 | Son | — | Kentucky |
| 58 | Dovie Clark | 10 | Daughter | — | Kentucky |
| 59 | Pauline Clark | 7 | Daughter | — | Kentucky |
| 60 | Gillard Clark | 5 | Son | — | Kentucky |
| 61 | Geneva Clark | 2 | Daughter | — | Kentucky |
| 62 | Jones Blair | 22 | Head | Farmer | Kentucky |
| 63 | Pearly Blair | 18 | Wife | — | Kentucky |
| 64 | Agandell Blair | 1 | Son | — | Kentucky |
| 65 | Lewis Blair | 63 | Father | — | Kentucky |
| 66 | Hiram Ledford | 47 | Head | Farm | Kentucky |
| 67 | Effie Ledford | 42 | Wife | — | Kentucky |
| 68 | Jim Ledford | 19 | Son | Laborer | Kentucky |
| 69 | John Ledford | 17 | Son | Laborer | Kentucky |
| 70 | Rosa Ledford | 15 | Daughter | — | Kentucky |
| 71 | Sarrah Ledford | 13 | Daughter | — | Kentucky |
| 72 | Martha Ledford | 11 | Daughter | — | Kentucky |
| 73 | Hiram Jr. Ledford | 7 | Son | — | Kentucky |
| 74 | Jess Kelly | 39 | Head | Farm | Kentucky |
| 75 | Dora Kelly | 31 | Wife | — | Kentucky |
| 76 | Hobart Kelly | 7 | Son | — | Kentucky |
| 77 | Lester Kelly | 6 | Son | — | Kentucky |
| 78 | Virgil Kelly | 5 | Son | — | Kentucky |
| 79 | Cindia Kelly | 1 | Daughter | — | Kentucky |
| 80 | Jim Griffin | 44 | Head | — | 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)