- Charles A. Fort, Charles Chase Hill, David Francis Costello, David Irving Blumenstock, Doys Andrew Shorb, Elmer R. Roth, Ethelbert Lee Langsford, Everett Elmer Wehr, Frank M. Eaton, Horace Preston Lanchester, Irvin Carl Feustel, Leander D. Howell, Lucy Maclay Alexander, Lyle Thomas Alexander, Mark Hughlin Haller, Milton Henry Fohrman, Robert Edgar Worthington, Roy Hyer Canfield, Stafford Coleman Happ, Thomas Randall Carson Wilson, United States. Bureau of Plant Industry, Vernon Webster Johnson, William Gustavus Wahlenberg, Bailey Sleeth, Ben Hur Thibodeaux, Gordon Rittenhouse, Horace Greeley Byers, John Stuart Pinckney, L. V. Wilcox, Nancy Griswold Clark, Nelson McKaig, Paul Lewis Harding, R. R. Graves, Raymond Price, Sidney Henderson, Smith Winford Greene, Edgar John Udine, Gilbert Colfax Dobson, Glen Edgington, Hiram Richard Reed, James Hayes Marshall
· 1940
- Arthur Henry Senner, Arthur Truman Semple, Carl A. Taylor, Caroline Baldwin Sherman, Charles Felix Doucette, Charlotte Elliott, Clarice Louisba Scott, George Henry Hepting, Henry F. Bain, James Francis Martin, Jesse Wilburn Ingram, John Robert Magness, Juan Brewer Demaree, Lucy Maclay Alexander, Margaret Smith, Philip Farley Allan, R. T. Cotton, Rush Porter Marshall, Theodore P. Dykstra, Thomas K. Killand, Wilbur Reed Mattoon, William Carmichael Cook, William Henry White, E. K. Bynum, G. F. Gravatt, George B. Wagner, Mason August Hein
· 1942
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No image available
No image available
Charles A. Fort, Charles Chase Hill, David Francis Costello, David Irving Blumenstock, Doys Andrew Shorb, Elmer R. Roth, Ethelbert Lee Langsford, Everett Elmer Wehr, Frank Morris Eaton, George Charles Husmann, Harold Reginald Offord, Horace Preston Lanchester, Irvin Carl Feustel, Leander D. Howell, Lucy Maclay Alexander, Lyle Thomas Alexander, Mark Hughlin Haller, Milton Henry Fohrman, Robert Edgar Worthington, Roy Hyer Canfield, Stafford Coleman Happ, Thomas Randall Carson Wilson, Vernon Webster Johnson, William Gustavus Wahlenberg, Bailey Sleeth, Ben Hur Thibodeaux, Elmer Snyder, George R. Van Atta, Gordon Rittenhouse, Horace Greeley Byers, John Stuart Pinckney, L. V. Wilcox, Nancy Griswold Clark, Nelson McKaig, Paul Lewis Harding, R. R. Graves, Raymond Price, Sidney Henderson, Smith Winford Greene, Edgar John Udine, Frederick Ludwig Husmann, Gilbert Colfax Dobson, Glen Edgington, Herman Eugene Swanson, Hiram Richard Reed, James Hayes Marshall· 1939
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No image available