- Arthur Samuel Colby, Edwin Ivan Pilchard, Herbert Windsor Mumford, John William Lloyd, Louie Henrie Smith, Martin John Prucha, Raymond Charles Kelleher, Wesley Pillsbury Flint, William Arthur Foster, Emil Wilhelm Lehmann, Frederick Charles Bauer, Herbert Howard Alp, John Vandervort, Stewart Curtis Chandler
· 1929
- Charles Andrew Brown, Charles Bovett Sayre, Charles Leslie Stewart, Charles Spencer Crandall, Emil Wilhelm Lehmann, Frederick Charles Bauer, Harold Hanson Mitchell, Henry Perly Rusk, Jay Courtland Hackleman, John William Lloyd, Louie Henrie Smith, Tom Sherman Hamilton, Walter Lee Gaines, William Barbour Nevens, Arthur Maxwell Brunson, Arthur Moses Buswell, Horace Mead Newell, Lacey Fletcher Rickey, Roscoe Raymond Snapp, William Garfield Kammlade, William Leonidas Burlison, Lawrence Joseph Norton, Ogle Hesse Sears, Raymond Charles Kelleher
· 1928
- Charles Bovett Sayre, Clyde Melvin Woodworth, Emil Wilhelm Lehmann, Frederick Charles Bauer, Harold Clayton M. Case, John William Lloyd, Lawrence Joseph Norton, Oliver Ralph Overman, Paul Hubert Tracy, Robert Childers Ashby, Roger Hammond Bray, Roscoe Raymond Snapp, Sleeter Bull, Charles Leslie Stewart, Frank C. Kingsley, Harrison August Ruehe, Horace Mead Newell, John Harvey Knox, John Harwood Longwell, Kenneth Edwin Wright, R. H. Wilcox, Frank Paul Sanmann, Herbert Andrew Berg
· 1929