Leroy R HafenLeRoy R. Hafen (1893-1985) was Professor of History at the University of Denver and Brigham Young University, Executive Director of the State Historical Society of Colorado, and author/editor of numerous books on the American West, including <>Ruxton of the Rockies, Fur Trappers and Traders of the Far Southwest: Twenty Biographical Sketches, and Handcarts to Zion: The Story of a Unique Western Migration, 1856-1860. Read More Read Less