I wish could help but all mine were originally in SC before 1773 that I have documented. In the 1880 census Thomas and Moses Jr state both parents were born in SC so they would have been there in the 1770s-80s. My G Grandfather was Wm Joseph b 1852 Lumpkin Co. His father Thomas (1826)and brother Moses were born in probably Pendleton SC. because that is where my lines were found in the early census records. They migrated out of SC into Buncombe before 1820.
I do know of a Smith line in SC who were from Va and they married into my Durham line in Chatham Co NC. They were originally from Va and so were my Durhams.They migrated to SC. This was the Christopher Kitt Smith line. He was born abt 1730 in Va. Supposedly his son was old John Buckner Smith Rev War Patriot who died in Pickens SC.My Great grandfather Wm Joseph did name a son Wm D Smith who was born in 1888 Ga.However, that name is so common. Much luck! Josie