antique native american doll

This is a small native american doll, maybe a prarie man. He is made of rough natural brown cloth, with seed beads for face and embelishment. The beads are yellow, turquoise, (red mouth) approx size 7 or 8. He has rough hair, perhaps buffalo. It is not as thick as most as horse hair, but thicker then human. Black hair tied in knots with leather thong, like 2 pony tails. The doll is wearing med brown leather buckskin pants and shirt with fringe, and moccasins. He has 5 real claws embellishing his shirt.
This doll is in very good shape, it has been stored a long time. It has never been changed, but may need professional cleaning. The doll has a USA (civil war?)
button on his shirt top.