"Captain W. F. Drennan, Chief of Scouts, as Pilot of Emigration and Government Trains across the Wild West Prairies Fifty Years Ago" is a book written by Captain William F. Drennan himself. In his autobiographical book, he tells about his life and incredible adventures in the days when the Wild West was still really wild. This is a fascinating account of the Indians, warriors, settlers and bands that crossed the vast prairies of America half a century ago. The book helps the reader imagine the dangerously beautiful world in which Captain Drennan lived and worked.