"HENRY THOMAS MAYO (1856-), American naval officer, was born at Burlington, Vt., Dec. 8 1856. He graduated from the U.S. Naval Academy in 1876 and after passing through the usual stages of promotion became captain in 1908. From 1911 to 1913 he was commandant of the Mare Island navy yard and in the latter year was promoted to rear-admiral. In 1915 he was given the rank of vice-admiral and was in command of the squadrons of the Atlantic Fleet. The following year he was promoted to admiral and made commander-in-chief of the Atlantic Fleet, which position he held during America's participation in the World War. In 1918 he visited England, France and Italy on a tour of inspection. In 1919 his rank reverted to that of rear-admiral.