First Americans

Scandinavian features. So what? That doesn't give European descendants any claim to having our people here earlier. Whatever he was, if he had any descendants, they would be the native people found here by early explorers.

I wouldn't say it was impossible for early tribes that migrated from Eurasia or wherever to have been somewhat mixed race in the first place. Why not? It might be a stretch to think an African could end up with people from Siberia coming over 10,000 years ago, but a few individuals from a more northern region with different characteristics might have happened.