- Arthur Douglas Hughes, Benjamin Franklin Ruffner, Charles Edwin Thomas, Clair Van Norman Langton, Earl Clark Willey, Eugene Carl Starr, Fred Merryfield, Frederick Alton Everest, George Walter Gleeson, Glenn Voorhies, Harry Stanley Rogers, James Rinaldo Griffith, Louis Slegel, Raymond Hawley Johnson, Robert Edward Summers, Roland Eugene Dimick, Samuel Herman Graf, Thurman James Starker, William Howard Paul, Charles Arthur Mockmore, Milosh Nicholas Popovich, Walter Beno Bollen, Wilbur G. Wilmot, Clarence Delmer Adams, Fred George Kachelhoffer
· 1929
- Arthur Douglas Hughes, Charles Arthur Mockmore, Charles Oswald Heath, Dwight Dameron Ritchie, E. Elzy, Elbert Floyd Rice, Herman Robert Amberg, John Joseph Wittkopf, Malcolm Harvey Karr, Marvin Archie Ring, Milosh Nicholas Popovich, Richard William Boubel, Samuel Herman Graf, Stanley Howard Lowy, William Harold Rice, Fred Merryfield, Leslie Allison Clayton, Mortimer De Forest Macdonald, Norman Robert Brandenburg, Olaf Gustav Paasche, Reuben W. Peterson, Richard Mark Sisson
· 1949
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