by Albert Lemuel Whiting, Charles Spencer Crandall, Emil Rauchenstein, Frederick Charles Bauer, George Harlan Dungan, Harold Hanson Mitchell, John Benjamin Rice, John William Lloyd, Oliver Ralph Overman, Robert Watt Stark, Frank Paul Sanmann, Gage Griffin Carman, Robert Cooke Ross, Russell James Laible, Thomas Everett Richmond, Tom Sherman Hamilton, Leslie Ellsworth Card, William Garfield Kammlade

1926

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 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 Benjamin Koehler, David Cleveland Wimer, Frank Lincoln Stevens, Harold Clayton M. Case, Harold Hall McKinney, James Lloyd Edmonds, Mary Helen Keith, Oliver Ralph Overman, Raymond Stratton Smith, William Garfield Kammlade, Arthur Knapp Mackey, Chalmers Woodruff Crawford, Frank Paul Sanmann, George Harlan Dungan, James Ransom Holbert, Kenneth Hayes Myers, Marion Boyer Harland, Orda Allen Plunkett, Frederick Alexander Davidson, Robert William Webb

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

by Albert Lemuel Whiting, Emil Rauchenstein, Foster Floyd Elliott, Frederick Charles Bauer, Frederick Francis Weinard, George Harlan Dungan, Harold Hanson Mitchell, James Lloyd Edmonds, John Benjamin Rice, John William Lloyd, Oliver Ralph Overman, Robert Watt Stark, Tom Sherman Hamilton, Walter Lee Gaines, William Barbour Nevens, Chalmers Woodruff Crawford, Frank Paul Sanmann, Gage Griffin Carman, Henry Perly Rusk, Herman Bernard Dorner, Robert Cooke Ross, Russell James Laible, Thomas Everett Richmond, William Leonidas Burlison, Leslie Ellsworth Card, William Garfield Kammlade

1927

by Bethel Stewart Pickett, Bonnie Elizabeth Scholes, George Matthew Reed, Harry Alexis Harding, Harry Warren Anderson, J. R. Holbert, John William Lloyd, Juliet Lita Bane, Mabel Wilkerson, Nelson William Hepburn, Oliver Ralph Overman, Robert Graham, University of Illinois (Urbana-Champaign campus). Dept. of Agronomy, Wesley Pillsbury Flint, William Leonidas Burlison, William Sanford Brock, George Harlan Dungan, Harriet Muriel Phillips, Harrison August Ruehe, Ivan Bertrand Boughton, Robert Watt Stark

1919