Abstract The Norman D. and Doris Nevills papers (1890s-1952) constitute one of the finest and most comprehensive collections of original research materials on the history of travel on the Colorado and Green Rivers and their tributaries. Included are correspondence, diaries, logs, subject files, news clippings, and business records. Norman Nevills (1909-1949), supported by his wife Doris, was one of the pioneers of commercial river running.