- 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
- Alfred Paul Dachnowski-Stokes, Arnold Orlando Benson, Bruce Berger Derrick, Curtis May, Curtis Paul Clausen, Erastus Newton Bates, Erval Jackson Newcomer, George Arceneaux, George McMillan Darrow, George Whitfield Stiles, Glen Blaine Ramsey, Hastings Newcomb Bartley, Homer Charles McNamara, James Robert Dawson, John Clay Overpeck, Joseph Martin Mehl, Morris Cotgrave Betts, Neil E. Stevens, Oliver I. Snapp, Perez Simmons, Roland McKee, Samuel Benton Nuckols, United States. Department of Agriculture, Victor Bigelow Bonney, Walter M. Peacock, William Albert Hartman, Byron Curtis Brunstetter, Dalton Ray Hooton, G. F. Gravatt, George Fordyce Waldo, George P. Bodnar, Harry August Schoth, Harry Avalon Elcock, James Randolph Thomson, John Donald Black, L. B. Scott, M. A. Yothers, Manly Alexander Raymond Kelley, Paul A. Clifford, Richard Thomas Gibbens, William Doyle Reed, Dow Dewey Porter, E. A. McGregor, Edward James Stirniman, Henry Albert Lepper, James Louis Stephens
· 1931
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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
No image available