United States. Department of Agriculture / Arthur T. Sweet / Benjamin Yoe Morrison / Clarence Luther Forsling / Dan Hansen / David Griffiths / E. A. McGregor / Edgar Brown / Edward Frank Snyder / Elmer W. Knight / Ernst H. Wiecking / Franklin Elmer Allison / George Pelham Walton / George Thomas Ratliffe / George W. Barber / Hans Weller Hochbaum / Helnut Charles Diehl / Horace Branson Cowgill / James Richard Quesenberry / Jess Richard Dilley / Robert Normal Wilson / Thomas William Heitz / Victor Nelson Valgren / Wells Aleck Hutchins / William Williams Gilbert / Arthur Edgerton Seamans / Charles Henry Thompson / Earle V. Storm / Eben H. Toole / Fred Campbell Meier / Robert Franklin Gardiner / William Lukens Edwards / David A. Savage / Willard Levi Goss | 