Custer and the Great Controversy was Robert M. Utley's debut, coming after six years of service as a ranger-historian at the Little Bighorn National Monument. His distinguished career as a historian has produced many books, including Frontiersmen in Blue: The United States Army and the Indian, 1848-1865 and Frontier Regulars: The United States Army and the Indian, 1866-1891, both available as Bison Books.