Richard K. Skyles
Arlan Helgeson
Woodrow Damerell
Gene W. Tomlin
William E. Hallin
Milton Easton
Glenn R. Ahrens
Warren T. Clarke
Alvin Byrd
Richard P. Summers
John W. Davis
Carl P. Heisig
J. H. Christ
J. C. McDowell
Timothy Brian Harrington
Allen H. Hodgson
Robert E. Kischel
United States. Bureau of Agricultural Economics.
Milton E. Philbrook
Steele, Robert W.