Interesting question. He wrote about various fictional native Americans, certainly. Someone may have made a list or written a thesis. (For these purposes, I would say Roughing It was fictionalized.) But, whom did he encounter in the first person, what did he say about that? Hmmm. I had formed the notion that he harbored a bias against Indians. Possibly placing the indigenous inhabitants of North America above the French, in his estimation, but not much higher. ;-) But data would surely help this understanding. DDD