David E. Fogelson, H. N. Smith, Bruce W. Naugle, Carl Rampacek, D. A. Douglass, Edward Gerard King, Harold William Sohns, John H. Hild, John J. Mulligan, John W. Chester, Lloyd Harold Banning, Richard Edward Lindstrom, Richard F. Zaffarano, Richard J. Leary, Robert L. Montgomery, Thomas Calvin Atchison, United States. Bureau of Mines, Van E. Shaw, Vernon B. Dale, Victor Kalcevic, W. V. Kuster, Willis Beckering, A. U. Christensen, B. J. Mitchel, Cecil Q. Cupps, Charles K. Rose, Donald J. Bauer, E. E. Jukkola, George W. Birge, Harry C. Fuller, J. D. Lankford, Kenneth Keith Kelley, Theodore D. Hubert, W. E. Anable, Walter W. Fowkes, Wilbur I. Duvall, William Alan McKinney, William E. Tournay, John M. Gomes, Joseph Fry, Julius Bruce Clemmer, P. T. Waddleton, W. C. Kommes, W. I. R. Murphey, William F. Hergert · 1959
A. C. Johnson, Donald W. Mitchell, George J. Carter, John C. Machisak, Joseph Grumer, Joseph H. Bilbrey, Kung-ping Wang, R. Ward Stahl, Roy F. Waters, Ruth Frank Brinkley, Sara Jane Boles, Vernon B. Dale, William Joseph Campbell, William Rachunis, Arthur A. Sinicrope, F. D. Hanson, Hal J. Kelly, Heine Kenworthy, John Nagy, Robert W. Van Dolah, Virginia E. Wrenn, E. W. Parsons, Elizabeth K. Elsner, James A. Moore · 1962