- William Waugh Adams, Byron Matthew Bird, Albert John Kraemer, Arno Carl Fieldner, B. Marvel O'Harra, Byron Oscar Pickard, Carl A. Taylor, Clyde Elmer Williams, Daniel Harrington, Earl Renwick McMillan, Edmund Spriggs Leaver, F. C. Gregory, F. C. Houghten, George William Jones, Harold Carl Miller, Horace Wadsworth Gillett, J. E. Crawshaw, J. J. Jakosky, Lee Clyde Ilsley, Martin J. Gavin, Mayo Dyer Hersey, N. F. Le Jeune, Nicholas Arthur Clarke Smith, O. P. Hood, Oliver Bowles, Ronald Van Auken Mills, Royd Ray Sayers, S. H. Brooks, Spencer Pritchard Howell, Thomas Thornton Read, United States. Bureau of Mines, W. W. Odell, William John McConnell, William Marsh Myers, Charles Edward Munroe, Constantin Promos Yagloglou, D. D. Stark, E. W. Butzler, Edward Lawrence Mack, Edward Phillip Barrett, H. B. Brunot, H. E. Messmore, H. M. Smith, I. H. Nelson, Lewis C. Karrick, Max Wilhelm Von Bernewitz, R. V. Thurston, Sidney Hershberg Katz, Thomas Leonard Joseph, William Parks Yant, Bernard Marvin Larsen, Dewey A. Reynolds, E. P. Buxton, L. P. Calkins, Percy Hoke Royster
· 1923
No image available
Arthur Stewart Eve, Bernard Marvin Larsen, Clifford Pinkney Bowie, Ernest Elmer Berger, Eugene Delos Gardner, G. B. Shea, George Samuel Rice, Harry Blackburn Hill, Henry Alfred Doerner, I. B. Williams, John D. Sullivan, Lee Clyde Ilsley, Morris Guggenheim, Oliver Bowles, Paul G. Guest, Selwyne Perez Kinney, United States. Bureau of Mines, William Hawes Coghill, Alva Britt Hooker, Alvin J. Sweet, David Arnold Keys, Dorsey J. Parker, Harold Putnam Greenwald, Raymond Arthur Kearns, Rudolph Richard Brandenthaler, Donald Henry Zellers, Frederick William Lee, Morgan Walker· 1929
No image available
Arno Carl Fieldner, Bernard Marvin Larsen, Clifford Cook Furnas, Edmund Spriggs Leaver, George St. John Perrott, Harold Manton Smith, Harry Blackburn Hill, John D. Sullivan, Lee Clyde Ilsley, Morris Guggenheim, Oliver Bowles, Paul Gordon Guest, Sidney Hershberg Katz, United States. Bureau of Mines, William Wallace Odell· 1930
No image available
No image available