George Bird Grinnell (1849-1938) was a historian, naturalist, explorer, sportsman, and conservationist. He helped to establish Yellowstone Park and Glacier National Park, co-founded the first Audubon Society, and along with Teddy Roosevelt, co-founded the Boone and Crockett Club. Grinnell was a long-time editor of Forest and Stream magazine and wrote several landmark books on the Pawnee, Blackfoot and Cheyenne peoples, having lived with and befriended the last generation to have known the glorious freedom of the buffalo days. Grinnell’s career as a writer and recorder of Indian life-ways would later be characterized by the famed historian Stephen Ambrose as “of incalculable benefit to every student of Western or Indian history.”