Louisa Anne Meredith
George M. Darrow
Safiya Samman
Yasuyuki Hiratsuka
J. F. Martin
A. D. Cannavina
Fred L. Joy
F. E. Powers
United States. Bureau of Plant Industry
Fred Reinlein
Unknown Author
United States. Division of Forest Pathology
Stephen N. Wyckoff
United States. Division of Plant Disease Control.
R. J. Hoff
Lewis P. Hiatt
R. E. Williams
Donald N. Matthews