Admiral Sir William Reginald Hall, known as Blinker Hall, was the British Director of Naval Intelligence 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.
- Occupation
- politician
- Position held
- member of the 34th Parliament of the United Kingdom, member of the 32nd Parliament of the United Kingdom, member of the 31st Parliament of the United Kingdom
- Citizenship
- United Kingdom, United Kingdom of Great Britain and Ireland
- Born
- June 28, 1870
