- 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
- Carl A. Taylor, Elizabeth Harding Burroughs, Elmer Allen Holbrook, Henry Kreisinger, Martin Joseph Gavin, Oliver Bowles, Raymond Bardeen Ladoo, Richard Bishop Moore, Thomas Varley, John Blizard, Edward Phillip Barrett, Richard V. Ageton, Samuel Colville Lind, Albert Russell Mumford, C. C. Stevenson, Harry Earle Tufft, John Wesley Marden, Bertram J. Cross, John Paul Bonardi, Robert Henry Bradford, William Robertson Argyle, Charles Wesley Davis, Ralph Arthur Sherman, John Edward Conley
· 1923
- Earle Jay Babcock, Elizabeth Harding Burroughs, Galen Howell Clevenger, George Samuel Rice, Harold Coulter George, Henry Kreisinger, James Washington Paul, Lionel Herman Duschak, Willard Walker Cutler, William W. Odell, Curt Nicolaus Schuette, John Blizard, Lee Clyde Ilsley, Martinus H. Caron, Charles Edward Augustine, Ernest J. Gleim, Max Wilhelm Von Bernewitz, Bertram J. Cross
· 1923