Lyon, Bethuel Boyd Vincent, 1880-1953.

Bethuel Boyd Vincent Lyon received his medical degree from Johns Hopkins University in 1907 and served his internship in Philadelphia at German Hospital, where he established the first ever clinic devoted to the study of gastroenterology in 1910. Lyon was appointed to the faculty of Jefferson Medical College, Philadelphia, in 1910 as a Demonstrator of Medicine. He held several positions there, rising to the level of Clinical Professor of Medicine upon his retirement in 1946. A pioneer in gastroenterological research, Lyon introduced the procedure of non-surgicial biliar drainage to diagnose and treat biliary tract problems. His major works include Atlas on Biliary Drainage Microscopy (1935) and Non-surgical Drainage of the Gall Tract (1923). Lyon was professionally active in the American Gastroenterological Association and served as its president in 1934. He also was a Fellow of the College of Physicians, elected in 1914. During World War I, Lyon served in the Medical Corps of the Navy at the Naval Hospital at Brest, France from 1917-1919. Dr. Lyon died on May 20, 1953, in Washington, D.C.