UPDATE:
Per the 1850 Shelby census this is the family of the Samuel who died in 1856. It looks like their surname may have been Hite instead of Hiatt. They may or may not be connected to the Samuel of Mason County:
Name: Joseph Hite
Age: 75
Birth Year: abt 1775
Birthplace: Virginia
Home in 1850: District 2, Shelby, Kentucky
Gender: Male
Family Number: 514
Household Members:
Name Age
Joseph Hite 75
Elizabeth Hite 53
Ellen Hite 18
Nancy Hite 21
Samuel Hite 15
M Huey Hite 9