Edwin Coblentz Voorhies

Frederic Theodore Bioletti, Warren Porter Tufts, Guy Lockhart Philp, Arthur Henry Hoffman, Roland Snow Vaile, Edwin Coblentz Voorhies, John Irwin Thompson, Joseph Scattergood Dixon, Earle Long Overholser, Edward Ellis Thomas, Elmer Ralph De Ong, Chester Linwood Roadhouse

John F. Moore, George William Fischer, State College of Washington. Agricultural Experiment Station, Paul Henry Landis, Edwin Coblentz Voorhies, Clive R. Harston, J. R. S. Jorgens, Walter L. Slocum

Frederic Theodore Bioletti, William Vere Cruess, Fritz Wilhelm Woll, Warren Porter Tufts, Edwin Coblentz Voorhies, Paul Llewellyn Hibbard, John Sedgwick Burd, Guy Robertson Stewart, Herbert John Webber, Merritt Berry Pratt, Ralph Hawley Taylor

California Agricultural Experiment Station, Frederic Theodore Bioletti, William Vere Cruess, Fritz Wilhelm Woll, Edward Oliver Essig, Edwin Coblentz Voorhies, John Eliot Coit, Paul Llewellyn Hibbard, Walter Eugene Packard, Robert Willard Hodgson