Hello, we must be 4th or 5th cousins...
YOS was my GGGgrandfather as well, thru Lousianna Victoria & Wm Lane Johnson. If you please, check out my tree at http://trees.ancestry.com/tree/43236046/family?cfpid=1263541...

For parent of John KEY b NC and Martha [Patsy] DAVIS: I show father as John Key (b 1746 in Moore NC), but no citations or references, sorry. NOTE: Patsy was married to John KEY, but the father was (supposedly) John KEYS (ending in an "s").

Do you have any parentage info on YOS Webster? I recently found YOS father listed as William WEBSTER & mother Elisabeth B FOSTER, but again with no citations.