Penn served in a variety of positions at USDA from 1967 to 1981.
Originally from Arkansas, Penn is a graduate of Arkansas State University. He received his Master's degree from LSU and a Ph.D. from Purdue University.
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Penn served in a variety of positions at USDA from 1967 to 1981.
Originally from Arkansas, Penn is a graduate of Arkansas State University. He received his Master's degree from LSU and a Ph.D. from Purdue University.