Almost wiped out?
Would that mean that there might be some poeple left who's bones wouldn't have to be dug up in order to do genetic testing?
As for modern Scandinavians, I was always under the impression that they were some of the germanic tribes (Goths?, Vandals?) living as farmers on the russian steppe when Attila, and and his hordes of hairy horesemen made them feel the brunt of fire and arrows, and chased them west toward the declining Roman Empire. Which was some time after the Welsh had settled in Wales. However, tracing the movements of populations in classical Europe is extremely difficult at best, so disregard that if you have more up-to-date information.
Regardless of all the ethinic groups people invented (They're all really just lingustic groups; how do you tell where one ethinic group stops, and another one begins?), blond hair or blue eyes are not very uncommon in any Indo-European groups are usually taken as a sign of being Indo-European, which the Amerindians ain't. (of course, the same problem that appies to ethinic groups does here too) Low melanin levels in skin are a trait of people who've adapted to extreme northern/southern latitudes. (Pale skin is in order to absorb as much valuable-vitamin-D producing sunlight as possible, away from a dark, cloudy environment it's is a serious disadvantage as UV rays it burn it easily) Why the low melanin levels carry over into the eyes, and hair of
many IEs in northern climbs is anybody's guess, as there's no real advantage or disadvantage to that mutation.
IIRC, Ibn Fadlan (10th century) described Norse people as being light/fair haired, and looking at him oddly for his dark hair, but he went on later to describe golden/(blonde?) hair. All the stuff I've read says that there were fewer blonds, and maybe more readheads, but there was no photography in the viking age, so it's all conjecture anyway.
Back to the OP:IIRC there was another tribe in Virginia I think that had some people with blond(e) hair in it, and that's closer to known pre-columbian settlement areas than Western North Dakota. I still can't understand how a group of ancient Welshmen/women would get to North Dakoda. Or why. The runestone in Minnesota is a bit of a streach, and the Welsh would have had a much smaller 'New-World' infrastructure than the Vikings of earlier centuries because of England knocking on their door, and not having access to Iceland, and Greenland.
Welsh and Viking words being exchanged is an interesting concept, but I don't think the Vikings were there long enough to do anything other than raiding, and Danelaw was on the other side of the island. (Would you exchange words with them? Try these: Betws y Coed "Betus-uh-COYD", gallu "Gack-ley", or Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch

)
And check out the Cheif's name: Lo Jordan. Is that the name they found him with, or did he change it after contact with the settlers?
These people are very interesting. Does anyone have anymore information or links about them?
And while you're there: What about those South American mummies with traces of lotus in them, or the Egyptian ones with traces of cocaine?
Were the Olmecs and Egyptians swapping drugs?
