Arthur H. Lachenbruch / Arthur Maine Piper / Betsy A. Weld / Elmer M. Schell / Geological Survey (U.S.) / George Edward Ericksen / James Haskell Irwin / John R. Williams / Nathan Wood Bass / Warren W. Wood / George Plafker / Henry L. Smith / K. P. Moore / Margaret S. Griffin / Robert B. Morton / George Henry Horn / George W. Brett / Jaime Fernández Concha | 