- A. J. Pieters, Archibald Dixon Shamel, Benjamin Ralph Stauber, Chalmers Jackson King, Charles Sidney Leete, Charles Walter Collins, F. M. Grant, Fred Earl Keating, Frederick John Pritchard, Frederick Wulling Herbert, George McMillan Darrow, George Wright Hoffman, Harry Eugene Burke, Harvey John MacAloney, Hazel Katherine Stiebeling, Herman Meserve Johnson, Mary E. Sweeny, Neil E. Stevens, Orville Edward May, Oscar Roland Mathews, Perley Spaulding, Robert Claude Wright, Thomas Moore Whiteman, United States. Department of Agriculture, Walter Cochran Davis, Carl Stone Pomeroy, Charlotte Chatfield, Clarence Elbert Clement, George Fordyce Waldo, Harold Frederick Loomis, Horace Terhune Herrick, James Warren Hubbard, John Raymond Hansbrough, John Valentine Schaffner, Louis Henry Burgwald, Ruth Leah Morgan, Verner Ivan Clark, William Solomon Porte, Frank Nelson Harmon
· 1931
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Carl Alsberg, Charles Henry Thompson, Edward Gerrard Montgomery, Ernest H. Mathewson, Frank Rabak, George Charles Frederick Humann, Guy N. Collins, H. P. Gould, Harley Harris Bartlett, Herbert H. Bunzel, Homer LeRoy Shantz, I. G. McBeth, James Howard Kempton, Jesse Baker Norton, Lon Adrian Hawkins, Orator Fuller Cook, Roland McKee, United States. Bureau of Plant Industry, Warner Webster Stockberger, F. M. Scales, Otis Fisher Black, Percy Leroy Ricker· 1912
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No image available