Amos Bad Heart Bull (1869–1913) sought to preserve the story of his people through ledger drawings. He began his picture history during the 1890s and continued to add and revise his record until his death. Helen H. Blish (1898–1941) was a trained ethnographer who also taught high school English in Detroit between her visits and research trips to the Pine Ridge Reservation. Mari Sandoz (1896–1966) is the noted author of Cheyenne Autumn, Old Jules, and Crazy Horse: Strange Man of the Oglalas, all available in Bison Books editions. Emily Levine is an independent scholar. She is the editor of Josephine Waggoner’s Witness: A Húŋkpapȟa Historian’s Strong-Heart Song of the Lakotas (Nebraska, 2013), winner of the American Historical Association’s J. Franklin Jameson Award. Candace S. Greene is an ethnologist in the Department of Anthropology at the National Museum of Natural History, Smithsonian Institution. She is the coeditor of The Year the Stars Fell: Lakota Winter Counts at the Smithsonian (Nebraska, 2007).