I do have for example Conrad Hildebrand signing off on marriages in Burke. Those marriages may not have been legal to outside law. Who knows since the marriage bonds list no race.One of my untraceable lines lived in Hildebrand Town and we do have cousin DNA matches to Conrads family, this is at ancestry and I know we have a Hildebrand cousin match at Family tree DNA but they came from Germany and were up north USA. They are probably distant cousins to the Hildebrands of Burke. Its very possible someone in my family could have been fathered by a Hildebrand in my family but no paper proof and no solid Y DNA to back up autosomal cousin matches to these Hildebrands. The cheapest way to go and get the most matches would be to test at ancestry and then transfer your results to family tree. I unfortunately have some cousins only tested at ancestry and some only at family tree and wish my cousin matches at ancestry would transfer their results to family tree dna because you need to match up DNA segments and at the moment you cant do that on ancestry. In general I have seen that some of my family has DNA cousin matches to people who had ancestors in McMinn. but since my family stayed put in NC I don't know all the lines that moved out. I do have cousin lines that wound up in Green TN and Carter and Washington TN. This would be one line from Wilkes and one form Burke. You may get lucky finding some clues from DNA testing. Very possible you might get mysterious Burke County matches!!! We have several cousin matches to General J's family both Cherokee and non Cherokee but I dont know who is causing them.. I do have direct line Martin from Burke but he is untraceable and need Y DNA on him. I think he got the Martin surname from his mother. Y DNA would pove who his father line was anyway even if it's not Martin