by Benjamin Koehler, Charles Elmer Durst, Frederick Charles Bauer, Frederick Francis Weinard, John William Lloyd, Laurence Joseph Norton, Oliver Ralph Overman, Paul Hubert Tracy, Sleeter Bull, Victor Wendell Kelley, Walter August Huelsen, Wesley Pillsbury Flint, William Leonidas Burlison, Ben Bowen Wilson, Carl Otto Mohr, Harrison August Ruehe, Horace Mead Newell, James Ransom Holbert, Jay Courtland Hackleman, John Harwood Longwell, Merl Conrad Gillis, Orlando Ford Garrett, Samuel Wesley Decker, Fred Carl Olson, Ogle Hesse Sears

1930

by Chris Simeon Rhode, Clyde Maurice Linsley, Ernest Thompson Robbins, Leslie Ellsworth Card, Ogle Hesse Sears, Paul Hubert Tracy, Ray Stanley Marsh, Robert Graham, Rudolf Alexander Clemen, Sleeter Bull, Everett A. Tunnicliff, Frederick Charles Bauer, William Ernest Carroll

1928

by Charles Spencer Crandall, Emil Frederick Guba, Harold Clayton M. Case, John Benjamin Rice, Martin John Prucha, Paul Hubert Tracy, Robert Graham, Wesley Pillsbury Flint, William Barbour Nevens, Harry Alexis Harding, Ivan Bertrand Boughton, Martin Luther Mosher, Oliver Ralph Overman, Walter Valentine Balduf

1925

by 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