Richard F. Keeler
RICHARD F. KEELER, Ph.D. in biochemistry (Ohio State University), was, until retiring in 1990, a research chemist at the USD A Poisonous Plant Research Laboratory in Logan, Utah. He thanks Lynn James, Jess Wagstaff, and Dennis Roth for use of USDA photos and records, helpful leads, and biographic information; Robert Keeler and William Gaffield for detailed suggestions; and Mrs. William Emerson Riter for help with photo identifications.