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Alwin William Goke, C. L. Orrben, Carl Spencer Pearson, Ernest Alvin Nieschmidt, Marvon Harold Layton, Robert Campbell Jurney, Samuel Oscar Perkins, Stanley Wallace Cosby, Allen Henry Hasty, C. E. Dornberger, Howard Barr Winant, M. E. Carr, Robert Eddis Devereux, William Edgar Tharp, C. A. Hollopeter, Edward Shulkcum, Frank Bonar Howe, Daniel Francis Kinsman, Ray Carlton Roberts, Robert Wildermuthยท 1931