Thomas Bastin, Jr., a son of Thomas and Hannah Bastin, and a brother to the William who died in Pulaski County, KY, migrated to Kentucky from Caswell County with his wife, Mary W. (Atwell) Bastin, along with their young children, and with their older married children and their families. They are listed in east Barren County for the 1840 US Census, living very close to the tri-county boundary of Barren, Green, and Adair County, KY. The date that this migration from NC to KY took place is about 1830, with their arrival in Kentucky traditionally given as 24 Dec 1830. The eastern part of Barren County became Metcalfe County in 1860, as did part of western Adair County, as the result of a dispute over where a railroad would be built. Thomas Bastin, Jr. died in 1858, and is buried in Metcalfe County, KY at a well-kept cemetary on the Metcalfe and Green county line border. (See his tombstone. and Mary's tombstone.)
The following map from 1834 shows this part of Kentucky around the time that all the migrations from NC to KY took place. It is also about 7 years before some of the family moved north, from KY to IN.