by Carl Rampacek, Edward G. King, H. N. Smith, Hans G. Wolfhard, John J. Mulligan, John William Chester, Oliver Q. Leone, Phillip G. Pigott, R. B. Fisher, S. R. B. Cooke, T. E. Gray, Thomas C. Atchison, United States. Bureau of Mines, Victor Kalcevic, William A. Stickney, Willis Beckering, William Joseph Campbell, A. U. Christensen, Arthur E. Bruszak, Eugene Robert Palowitch, Harry C. Fuller, J. D. Lankford, J. R. Nettle, J. W. Smith, John W. Thatcher, Kenneth Keith Kelley, Melvin Leon, Miles E. Tyrrell, Waldemar M. Dressel, Walter W. Fowkes, William Alan McKinney, William E. Tournay, D. H. Baker, Julius Bruce Clemmer, P. T. Waddleton, W. C. Kommes

1959

by Louis B. Pankratz, Albert W. Deurbrouck, Carl J. Chindgren, D. A. Martin, D. S. Harper, Frank A. Peters, Frederick W. Hoertel, John W. Smith, Marcel Vanpée, Murphy E. Hawkins, Raynard V. Lundquist, Richard F. Hewlett, Sebastian J. Aresco, T. E. Gray, William R. K. Wu, William Samuel Landers, William W. Weller, Arthur E. Bruszak, C. O. Carman, Edward G. King, Harold Leitch, John B. Janus, Kenneth Keith Kelley, Laurence G. Trudell, Lester C. Bauerle, Manuel Gomez, Paul Watson Johnson, William D. Dietzman, E. O. Wagner, Flora E. Walker, J. M. Seward, Joe B. Rosenbaum, Kenneth E. Stanfield, Ralph C. Kirby

1963