- Martin Joseph Gavin, Richard Valentine Ageton, Willard Walker Cutler, Arno Carl Fieldner, Arthur L. Murray, Byron O. Pickard, C. Lorimer Colburn, C. R. Forbes, Charles Edward Munroe, Daniel Harrington, Donald B. Dow, Ernest Woodward Dean, Eugene Delos Gardner, F. J. Bailey, G. St. John Perrott, George Arthur Burrell, George Edward McElroy, Guy B. Taylor, H. F. O'Brien, J. J. Bourquin, John Gross, Joseph Dana Davis, Lee Clyde Ilsley, N. A. C. Smith, Oliver Bowles, R. M. Winslow, Raymond Bardeen Ladoo, Roy R. Hornor, Royd Ray Sayers, Royden Edward Head, Samuel Wilson Parr, Thomas Fraser, United States. Bureau of Mines, William Hawes Coghill, William Wallace Odell, A. D. Bauer, C. E. Coleman, Carl O. Anderson, George William Jones, H. H. Hill, Harry Fagan Yancey, Henry Rust O'Brien, Horace Chamberlain Porter, J. W. Paul, John T. Aydelotte, Lewis C. Karrick, Maurice Bacon Cooke, Palmer B. Place, Selwyne Perez Kinney, Sidney Hershberg Katz, Thomas Ernest Layng, Walker Stillwell Clute, C. R. Bopp, E. C. White, George Stanley Scott, W. B. Lerch, W. E. Perdew
· 1921
- 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
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No image available
No image available