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 | 