James Trosper is the Medicine Man and Sun Dance chief of the Shoshone Tribe on the Wind River Indian Reservation in Fort Washakie, Wyoming. He is heavily involved in efforts to preserve the Shoshone language and cultural heritage and is an active member of the Native American community. Wikipedia*
On the C-SPAN Networks:
James Trosper has one video in the C-SPAN Video Library; the first appearance was a 2000 Ceremony.