Hi John
I'm also tracking early settlers of the Clinch River area in what is now Scott County. My Taylors were from Fauquier County, as were the Carters.
Looking around the area near Marshall, VA, for names of families that might have known each other before 1802, I found a Patrick Pierson in a cemetery at Thumb Run.
You might look more around that area..if you find any other family links, please let me know too!
Kim