- N. F. Le Jeune, A. D. Bauer, Byron Oscar Pickard, John Robert Reeves, Theodore Earl Swigart, Arno Carl Fieldner, C. E. Sims, C. L. Colburn, Charles Edward Munroe, Clyde Elmer Williams, Craig Miller Bouton, Daniel Harrington, Edward H. Denny, Ernest J. Gleim, Eugene Delos Gardner, George Samuel Rice, George William Jones, Henry Alfred Doerner, Henry Kreisinger, Hilary Breton Brunot, J. J. Jakowsky, John Allen Davis, Joseph Dana Davis, Lee Clyde Ilsley, Leonard Greenburg, Ludwig Schmidt, Nicholas Arthur Clarke Smith, Oliver Bowles, Raymond Bardeen Ladoo, Robert John Anderson, Ronald Van Auken Mills, Royd Ray Sayers, Rudolf H. Kudlich, Sidney Hershberg Katz, Spencer Pritchard Howell, Thomas Varley, William Albert Dunkley, William Marsh Myers, William Melvin Weigel, William W. Odell, William Waugh Adams, H. B. Freeman (Jr.), Alva Britt Hooker, George Wetherall Smith, Harry Mac Cooper, J. E. Crawshaw, James Washington Paul, John Blizard, L. G. Marsh, Maurice Bacon Cooke, Max Wilhelm von Bernewitz, Paul Hopkins, William Parks Yant, Fred Davidson Osgood, Lawrence Bursley Berger
· 1922
- A. R. Elliott, Alan Leighton, Alfred R. Powell, Arno Carl Fieldner, Arthur L. Murray, Arthur Warren Ambrose, Earl W. Wagy, F. J. Bailey, Frederick B. Tough, George Samuel Rice, George St. John Perrott, Harry Harkness Stoek, James R. Jones, John H. Wiggins, Joseph Wesley Thompson, Lee Clyde Ilsley, Oliver Bowles, Raymond Bardeen Ladoo, Robert J. Anderson, Roy Edward Collom, Roy O. Neal, Thomas Thornton Read, Thomas Varley, Vannoy Hartrog Manning, Walter A. Selvig, William Clifton Phalen, William Waugh Adams, A. B. Hooker, Ernest J. Gleim, John Edward Crawshaw, Fred D. Osgood
· 1920
- Edmund Spriggs Leaver, Ralph H. Espach, Richard Duddleston Leitch, William Hawes Coghill, Arthur William Fahrenwald, C. Travis Anderson, Chase Elverton Sutton, Clifford Cook Furnas, Curt Nicolaus Schuette, Daniel Harrington, E.C. Lane, Edward H. Denny, Edwin Lee Rawlins, Eugene Delos Gardner, F. E. Cash, G. B. Shea, G. R. Hopkins, G. St. J. Perrott, George Edward McElroy, George Samuel Rice, H. M. Lawrence, Harold P. Rue, Harold Putnam Greenwald, Henry Alfred Doerner, J. D. Davis, John Gross, John Michael Devine, John Roy Thoenen, R. G. O'Meara, Ronald Van Auken Mills, Royd Ray Sayers, Royden Edward Head, Rudolph Richard Brandenthaler, Scott Turner, Thomas Leonard Joseph, Thomas Varley, William A. Sloan, William Waugh Adams, Jesse Arthur Woolf, Clarence Watson Owings, D. J. Parker, F. D. De Vaney, F. W. Lane, J. J. Forbes, K. L. Marshall, O. W. Greeman, S. R. Zimmerley, T. W. Johnson, Virgil Miller, Arno Carl Fieldner, F. Feehan
· 1928