- Charles F. Henderson, Alvin George Anderson, Arthur Frederick Sievers, Brittain Bragunier Robinson, Charles Cloyes Fletcher, Charles W. Culpepper, Clarence Francis Kelly, Claude Kedzie Shedd, Edward Mackay Chace, George Lloyd Hayes, George McMillan Darrow, Harold Edwin Stevens, Ivan Claude Jagger, James Okley Grandstaff, Mark Hughlin Haller, O. K. Hedden, Paul Jones Chapman, R. W. Leukel, Ralph W. Phillips, Robert Wallace Gerdel, Thornton Taft Munger, United States. Department of Agriculture, Walter Ernest Fleming, William Solomon Porte, Joy Harold Clarke, Albert Ronald Merz, Archie Davilla Hess, Donald Navarre Matthews, Emory Dwight Burgess, Frederick Lovejoy Wellman, Harry Willard Von Loesecke, Hubert Hill Moon, Jacob Martin Lutz, Jay Brownlee Davidson, Ole Anker Nelson, Ralph Boutelle Piper, Robert Max Merrill, Walter Louis Hodde, Bailey Edgar Brown, Earl Dewey Mallison, Edgar Vermont Collins, John Laurence Heid, Warren W. Maines
· 1941
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· 1952
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A. F. Burgess, Alonzo Clayton Davis, B. L. Wade, Bascom Anthony Belcher, C. C. Plummer, Charles Edwin Kellogg, Clarence Elbert Clement, Ellsworth Zouave Russell, Frank R. Smith, Harold Glenn Meginnis, James William Park, John Samuel Bengston, Martin Leatherman, Millard Curtiss Swingle, Ole Anker Nelson, P. M. Lombard, Raymond Price, Roderick Sprague, Thomas Henry Jones, Victor Leo Stedronsky, Wilbur Magruder Hurst, William Allison Lloyd, William Cecil Crow, William Norwood Sparhawk, R. W. Leukel, Ray Trask Webber, Robert Elsmere Hutton, S. F. Sherwood, Walter Raymond Humphries, Whiteford Lee Baker, William John Zaumeyer, Leonard Lee Harter, Philip B. Dowden· 1937
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