This collection was created by Dr. Larry Claflin, a plant pathologist at K-State from 1975 to 2006 and an expert in grain sorghum diseases. Over his career Dr. Claflin traveled widely in Africa, Asia, and North America studying and recording the diseases of various crops. Dr. Claflin documented his studies in the form of 35mm transparencies which he donated in K-State Libraries upon his retirement.