Alma Hogan Snell is the granddaughter of the famed Crow medicine woman Pretty Shield, on whose life the classic "Pretty-shield" is based. She is the author of "Grandmother's Grandchild: My Crow Indian Life," available in a Bison Books edition. Lisa Castle is a graduate student in biology at the University of Kansas. Kelly Kindscher is an associate scientist at the Kansas Biological Survey and the author of "Medicinal Wild Plants of the Prairie: An Ethnobotanical Guide,"