Comment on Chief Cornstalk: Shawnee Lineage by Catherine dee Auvil (@deeAuvil)

No one knows what Cornstalk’s DNA looks like unless you want to rob his grave which would be a horrible thing to do. So how can anyone match it?
I’m really confused by how few people can clearly link themselves back to Cornstalk. He had many descendants… Or were they ALL kidnapped/adopted?
Why don’t we know one single descendant with his yDNA?
One genetic clue we have is that Cornstalk and his sister were very tall. Stands to reason their descendants would also be tall.