The Tysons from Fancy Gap, VA are descendents of William D. Tyson from Juniata Co., PA. William descends from William Kemphers <- William Nash Tyson <- William Sellen <- Matthias <- Cornelius.
My line extends from William D.'s son Jacob (b. 1863, Carroll Co.) then William Stanford (b. 1882, Carroll Co.) and Wendel Wallace Tyson (b. 1909, Wellington, KS).
William D. had 3 sons: Abraham (b. 1853, Schuylkill Co., PA), Nathanial (b. 1849, Montgomery Co., PA), and Jacob* (b. 1863, Caroll Co., VA).
Your Sara Susan was probably the dau of Abraham. Unfortunately, I have not pursued this line as of yet. I do know that Abraham moved alot and ended up near Cadallac, MI.