Yes, I have the buckskinning book (vol. III) that has some of that stuff in it. The Pucker Toe and Center seamed mocs seem to be an Eastern/Woodland style. I was going to build the side seam mocs that you sew the upper to the sole and you have a back seam. I think the website you are thinking of might be Native American Tech. Not a bad site for finding information. Yes, I was thinking about a tribe along the lines of the Comanche or Apache.