A. J. Pieters / Albert Fred Woods / Carl S. Scofield / Carleton Roy Ball / David Griffiths / Elmer Drew Merrill / F. Lamson-Scribner / Flora Wambaugh Patterson / Henry Lewis Bentley / Herbert John Webber / Hermann Von Schrenk / Joseph Burtt-Davy / Margaret Clay Ferguson / Mark Alfred Carleton / Oscar Loew / United States. Bureau of Plant Industry / William Allen Orton / William Woodbridge Tracy / Edgar Brown |