Collection contains correspondence, course material (courses 401, 402, 653), lectures and talks, and material on consulting work in Chile, Finland, Indonesia and Ghana.

Correspondence, extensive grape breeding notes and notebooks, drawings of grape plants, drawings and sketches for wine labels for the New York State Agricultural Experiment Station, Geneva Cellars. Includes rootstock and grape information from the U.S., Georgia (in the former U.S.S.R.), France, and Germany. Information about his Hammondsport vineyard.

The John I. Shafer Jr. papers include correspondence, drafts and reprints of publications and lab notebooks relating to the work of John I. Shafer relating to corn, arginine desimidase in chlorella, and other plant genetics and botany related topics.

Plant breeding records and notebooks primarily on Ricinus and the castor plant.