MAYO, William James, American sur geon: b. Le Sueur, Minn., 29 June 1861. He is a brother of Charles Horace Mayo (q.v.). was educated at Rochester High School and Niles Academy and received his professional training at the University of Michigan, where he was graduated in 1883. Thereafter he prac tised in Rochester, Minn., as surgeon to Saint Mary's Hospital. He became first lieutenaw of the Medical Reserve Corps of the United States army in 1913. With his brother he established the Mayo Foundation for Medical Education and Research at Rochester in 1915. He is regent to the University of Minnesota. was president of the State Medical Society in 1895-96, of the American Medical Association in 1905-06, of the American Surgical Associa tion in 1913-14, and of the Society of Clinical Surgery, 1911-12. He is also a member of the American College of Surgeons, of the Clinical Congress of Surgeons of North America, of the Academie de Medicine de Paris (corre sponding secretary), of the Societe de Chirur gie de Paris, of the Royal College of England and Scotland. He has received honors from all
the principal universities as follows: M.D., University of Michigan, 1883; A.M., University of Michigan, 1889; LL.D., University of To ronto (1906), University of Maryland (1907), University of Pennsylvania (1912) ; D.Sc., Uni versity of Michigan (1908) and Columbia Uni versity (1910). He is a Fellow of the Royal College of Surgeons of England since 1913, of Scotland since 1905 and of the American Col lege of Surgeons since 1913. He is widely known for his numerous successful operations in cases of gallstones, cancer and diseases of the intestinal tract.