The Si-Te-Cah did
Lovelock, Nevada, is about eighty miles northeast of Reno. It was in a cave near here, in 1911, that guano miners found mummies, bones, and artifacts buried under four feet of bat excrement. The desiccated bodies belonged to a very tall people - with red hair.
There are also two kinds of red hair found among East Asians. One type occurs because of the hair thickness ~ it works as an interference pattern and you'll see strong hints of red. Another type occurs because the person has a great deal of the Western European yellow-brown/red-brown pigment.
Since both populations have been able to travel around the Pacific litoral for the last 15,000 years, even a very few number of survivors should have left behind some genetic markers still discoverable in native American Indian populations ~ and, lo and behold, they have.
Without getting into that very much what it means is that finding red heads on the Pacific Coast is not at all surprising!
Koreans and Japanese, or folks starting off from those places in the last 1400 years could easily have made it to America taking the same old route around the Gulf of Alaska and all the way to South America. They'd probably have some red hair from white ancestors in East India where the ruling class in Japan had lived some 400 years earlier.
Interesting stuff! I have some Cherokee ancestors and I remember talk about red headed native Americans. Of course I could have acquired mine from the Dutch side of the family. :-) It shows up in my family every other generation.