The Vanishing Race: The Last Great Indian Council by Joseph K. Dixon
From the jacket: "A record in picture and story of the last great Indian Council, participated in by eminent Indian chiefs from nearly every Indian reservation in the United States, together with the story of their lives as told by themselves: their speeches and folklore tales, their solemn farewell and the Indians' story of the Custer fight." (Also, yes, we know the title is horrifyingly racist).
Bonanza Books: 1913. [Later Reprint].
ISBN: 9780517174807. 330 pp.
Hardcover. Very good.