While serving on the staff of the Ontario Veterinary College (1921-1955,) initially as director of Veterinary Hygiene and Research, and subsequently as professor and head of the Department of Pathology, Dr. Frank Schofield established an enviable reputation as a teacher. Students attending his lectures were greatly stimulated by them.

However, it was in the field of research that he made his greatest contribution. His investigations led to the discovery of dicumarol (in mouldy sweet clover) as the cause of hemorrhagic disease of cattle, and this discovery formed the basis for modern anticoagulant therapy in humans, and for the commercial production of such pest control products as rat poison.

With respect to joint ill in foals, Schofield’s work dealing with causative bacteria set the stage for antibiotic treatment, which became available years later.

The astuteness of his predictions regarding disease processes, based on investigations conducted during a period when funds for such purposes were quite limited, were not fully appreciated until verified by the application of modern research techniques.

Previous to joining the OVC staff, he served as a Presbyterian teacher missionary in Korea, during which time he developed respect bordering on affection for the native people. Consequently, upon his retirement in 1955, he returned to Korea to teach veterinary science and Christian beliefs.

Because of his many contributions to veterinary science, he gained international recognition and received many honours, including an Honourary Degree in Veterinary Medicine from Ludwig Maximilian University of Munich, Germany in 1950; and an Honourary LLD from the University of Toronto in 1962.