I'd LOVE to exchange information with you! Of George Adam KOON's six children, only the last two left descendants. As a descendant of Obidiah, I've struggled to get the details about David's line that seem so easy on Obidiah's side.
My email is wilkessmithville.net
If I understand correctly, Tishie was married before. I think the marriage record I have for them says "Tishie Jackson." Would like any information about her or their marriage you care to share. As far as you know, was Tishie her real name or a nickname? Do you have any photos of her or David? Was their child John Robert Koon?