Mayo, Henry Thomas, 1856–1937, American naval officer, b. Burlington, Vt. In 1913 he became commander of the Atlantic Fleet. At Tampico in 1914 he precipitated an international incident by demanding an apology and salute to the American flag after Mexican officials had arrested U.S. sailors. President Wilson supported Mayo's demands, and he was made (1915) vice admiral. He was commander of the Atlantic Fleet in World War I and for a time in 1919 commanded the entire U.S. fleet. He was given the permanent rank of rear admiral and in 1920 was retired.
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