Jerome A. Greene is retired as Research Historian for the National Park Service. He is the author of numerous books, including Stricken Field: The Little Bighorn since 1876, Battles and Skirmishes of the Great Sioux War, 1876-1877: The Military View ; Lakota and Cheyenne: Indian Views of the Great Sioux War, 1876-1877 ; and Morning Star Dawn: The Powder River Expedition and the Northern Cheyennes, 1876 , all published by the University of Oklahoma Press.