A. J. Pieters, Benjamin Gaillard Sitton, Carl Rohwer, Charlotte Chatfield, Clarence Francis Kelly, Furman Lloyd Mulford, George Arceneaux, George Henry Hepting, Ira Myron Hawley, J. I. Hardy, John Wiloughby Randolph, LeRoy Powers, Leon Hugh Kelso, Mark Matthew Regan, Marvin Merritte High, Milo Nelson Wood, Myron Francis Babb, Ralph W. Phillips, Robert Elsmere Hutton, Royce Atwood Wight, Rudolph Knugaard Froker, Thomas Henry Kearney, United States. Department of Agriculture, Andy Walker Colebank, Ellsworth Zouave Russell, Frederick William Metzger, Georgian Adams, Harold William Wolf, Irvin Fay Reed, James Ellsworth Kraus, Richard Thomas Gibbens, Robert Hibbs Peebles, Walker Myrick Dawson, Austin Clair Hoffman, Charles Conrad Krumbhaar, Edward Dougall Gordon, Ernest Gordon Smith · 1940
Adrian John Pieters, Furman Lloyd Mulford, George Arceneaux, George Henry Hepting, Leon Hugh Kelso, Marvin Merritte High, Myron Francis Babb, Robert Elsmere Hutton, Rudolph Knugaard Froker, Andy Walker Colebank, Charles Conrad Krumbhaar, Ellsworth Zouave Russell, James Ellsworth Kraus, Richard Thomas Gibbens · 1939