Reginald Hall

Sir Reginald Hall
Admiral Hall in 1919
Nickname(s)	Blinker
Born	28 June 1870 Britford, Wiltshire
Died	22 October 1943 (aged 73)
Allegiance	United Kingdom / British Empire
Service/branch	Royal Navy
Years of service	1884–1919
Battles/wars	World War I
Awards	Knight Commander of the Order of St Michael and St George Companion of the Order of the Bath Order of the Rising Sun, Gold and Silver Star

Admiral Sir William Reginald Hall KCMG CB (28 June 1870 – 22 October 1943), known as Blinker Hall, was the British Director of Naval Intelligence (DNI) from 1914 to 1919. Together with Sir Alfred Ewing he was responsible for the establishment of the Royal Navy's codebreaking operation, Room 40, which decoded the Zimmermann telegram, a major factor in the entry of the United States into World War I.