In addition to Eddy, also pictured are Robert H. Weatherhead, John H. Marshall, Frederick L. Felton, Edward L. Holt, Vincent F. Callaway, Robert F. Bartl, Vincent F. Carey, O.A. Seager, W. Gordon Adger, Bradley-Camera Man, Parley Galloway-River Guide, and McGregory. Also includes documents relating to the book (A Mad Crazy River: Running the Grand Canyon in 1927) Eddy wrote about this expedition.