[ApplegateRanch]

The Dorset people — a 'paleo-Eskimo' culture that disappeared (wink wink) from the Canadian Arctic when the Thule Inuit arrived — are known from archeological investigations to have used Cape York meteoric iron for centuries."

What's the big mystery? Didn't the Dorsets use the iron to pay the Vikings for passage to Britain, then migrate to a particular area of England, now called Dorsetshire, and become sheep herders? There's even a breed named for them.

[Wuli]

See the info in the following link:

http://encyclopedia.stateuniversity.com/pages/6117/Dorset.html

and the only thing that stands out in that info that makes any plausible link to your theory, is the date 940 A.D. as the period in which the place Dorcester obtained it’s name, and that date was during a period of Norwegian and Danish inroads into the demographics of the British Isles.

If there are more direct links, I haven’t found them.

Maybe what is common about “Dorset” has to do with how, in the English language experience, the ancient people of Eastern Canada were given that name, and not those ancient people themselves.