The Bletchley Park Codebreakers (76 page)

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Authors: Michael Smith

BOOK: The Bletchley Park Codebreakers
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  1. U-boats
    1
    ,
    2
    ,
    3
    ,
    4
    ,
    5
    ,
    6
    ,
    7
    ,
    8
    ,
    9
    ,
    10
    ,
    11
    ,
    12
    ,
    13
    ,
    14
    ,
    15
    ,
    16
  2. U-2 aircraft
    1
    ,
    2
  3. UKUSA agreement
    1
    ,
    2
    ,
    3
    ,
    4
  4. Ultra
  5. Churchill and
    1
    ,
    2
  6. declassified
    1
  7. recipients of
    1
  8. secrecy
    1
    ,
    2
    ,
    3
    ,
    4
    ,
    5
    ,
    6
  9. Umkehrwalze see
    Enigma
  10. United States of America
    1. Army Ordnance Department
      1
    2. Army Security Agency/Armed Forces Security Agency
      1
      ,
      2
    3. Army Signal Security Agency
      1
      ,
      2
    4. atomic bomb
      1
      ,
      2
    5. bombes
      1
      ,
      2
      ,
      3
      ,
      4
      ,
      5
      ,
      6
      ,
      7
    6. British co-operation with
      1
      ,
      2
      ,
      3
      ,
      4
      ,
      5
      ,
      6
      ,
      7
      ,
      8
    7. British distrust of US security
      1
    8. Central Intelligence Agency
      1
    9. Cipher Bureau
      1
    10. cryptanalysis
      1
    11. enters war
      1
    12. Federal Bureau of Investigation
      1
    13. First United States Army Group
      1
    14. National Reconnaissance Office
      1
    15. National Security Agency
      1
      ,
      2
      ,
      3
      ,
      4
      ,
      5
      ,
      6
      ,
      7
    16. CANX
      1
    17. Naval Security Group
      1
    18. Navy Computing Laboratory
      1
    19. Navy Department
      1
    20. neutrality
      1
    21. Office of Naval Intelligence
      1
    22. Office of Strategic Services
      1
      ,
      2
    23. OP-20-G
      1
      ,
      2
      ,
      3
      ,
      4
      ,
      5
      ,
      6
      ,
      7
      ,
      8
      ,
      9
      ,
      10
      ,
      11
      ,
      12
      ,
      13
      ,
      14
    24. OP-31
      1
    25. Pacific Fleet
      1
    26. Signal Intelligence Service (SIS)
      1
      ,
      2
      ,
      3
    27. see also Arlington Hall
    28. service rivalries
      1
      ,
      2
    29. 6813th Signals Security Detachment
      1
      ,
      2
    30. ‘special relationship’
      1
      ,
      2
      ,
      3
    31. State Department
      1
    32. suspicious of Britain
      1
    33. War Department
      1
      ,
      2
      ,
      3
    34. war of 1812
      1
  11. University Recruiting Board
    1
  12. Uranus
    see
    Trumpeter
  1. Venona project
    1
    ,
    2
    ,
    3
  2. Ventris, Michael
    1
  3. Vienna
    1
  4. Vincent, E. R. (‘Vinca’)
    1
    ,
    2
  5. Vis
    1
  6. Vittorio Veneto
    1
    ,
    2
  7. Vivian, Major Valentine
    1
    ,
    2
  8. VJ Day
    1
  9. Vlasto, Alexis
  10. Linguistic History of Russia
    1
  11. Sarafand
    1
  12. von Neumann, John
    1
    ,
    2
  13. ‘Rigorous Theories’
    1
  14. Vulture
    1
  15. V-weapons
    1
  1. Waddington
    1
  2. Wales
    1
  3. walk-ins
    1
  4. Wallace, Henry
    1
  5. Walter
    see
    Tito
  6. Walzenlage see
    Enigma
  7. War Office
    1
    ,
    2
    ,
    3
    ,
    4
    ,
    5
    1. GC&CS
      1
    2. Haldane Committee
      1
    3. Y Group
      1
  8. Warder, Admiral
    1
  9. Warsaw
    1
    ,
    2
    ,
    3
    ,
    4
  10. Warspite
    1
    ,
    2
  11. Washington, DC
    1
  12. Washington Agreement (1944)
    1
  13. Watch, the
    1
    ,
    2
  14. Watton
    1
  15. Watts
    1
    ,
    2
  16. Wavell, Archibald
    1
  17. Wavendon
    1
    ,
    2
  18. Wayne State University
    1
  19. weather reports
    1
    ,
    2
    ,
    3
    ,
    4
    ,
    5
    ,
    6
    ,
    7
    ,
    8
    ,
    9
  20. Webb, Major Norman
    1
  21. Weeks, Ensign Robert
    1
    ,
    2
  22. Weisband, William
    1
    ,
    2
  23. Weiss
    , Operation
    1
    ,
    2
  24. Welchman, Gordon
    1
    ,
    2
    ,
    3
    ,
    4
    ,
    5
    ,
    6
    ,
    7
    ,
    8
    1. background
      1
    2. Cold War
      1
    3. diagonal board
      1
      ,
      2
    4. Enigma
      1
    5. Hut Six Story
      1
      ,
      2
      ,
      3
      ,
      4
    6. mathematicians
      1
    7. Phoenix
      1
    8. recruited
      1
      ,
      2
      ,
      3
      ,
      4
    9. traffic analysis
      1
  25. Wenger, Commander Joseph
    1
    ,
    2
    ,
    3
  26. Wenneker, Vice-Admiral Paul
    1
  27. Werftschlüssel
    1
  28. Western Desert
    1
  29. Western Wireless Signal Centre, Bangalore
    1
  30. Wetterkurzschlüssel
    1
    ,
    2
  31. Wheeton, Stephen James
    1
  32. Whelan, Ronald
    1
  33. Whitchurch
    1
  34. Whitworth, Jimmy
    1
    ,
    2
    ,
    3
  35. White, Sir Dick
    1
    ,
    2
    ,
    3
  36. White, Harry Dexter
    1
  37. Whitemore, Hugh:
    Breaking the Code
    1
  38. Wicher
    1
  39. Wick
    1
  40. Wiener, Norbert
    1
  41. Wilkinson, Patrick
    1
  42. Williams, Brig. E. T
    1
  43. Williams, Frederick: Williams tube
    1
  44. Williamson, Malcolm
    1
  45. Wilson, Captain
    1
  46. Wilson, Field Marshal Sir Henry
    1
  47. Winchester
    1
  48. Winterbotham, Frederick:
    Ultra Secret
    1
    ,
    2
  49. Wireless Experimental Centre, Delhi
    1
    ,
    2
  50. Wireless Experimental Depot, Abbottabad
    1
  51. wireless telegraphy intelligence
    see
    traffic analysis
  52. Woburn Abbey
    1
  53. Women’s Auxiliary Air Force
    1
    ,
    2
    ,
    3
  54. Women’s Royal Naval Service/Wrens
    1
    ,
    2
    ,
    3
    ,
    4
    ,
    5
    ,
    6
    ,
    7
    ,
    8
    ,
    9
    ,
    10
    ,
    11
    ,
    12
    ,
    13
    ,
    14
    ,
    15
    ,
    16
    ,
    17
  55. Womersley, John
    1
  56. Wormwood Scrubs
    1
  57. wrapover texts
    1
  58. WWs
    see
    weather reports
  59. Wylie, Shaun
    1
    ,
    2
    ,
    3
    ,
    4
    ,
    5
    ,
    6
    ,
    7
  60. Wynn-Williams, Dr C. E.
    1
    ,
    2
    ,
    3
  1. X (Italian code)
    1
    ,
    2
  2. X-Gerat
    1
  1. Y Committee
    1
    ,
    2
    ,
    3
    ,
    4
    ,
    5
    ,
    6
    ,
    7
    ,
    8
    ,
    9
  2. Yamamoto Isoruku, Admiral
    1
  3. Yardley, Colonel Herbert O.
    1
  4. Yellow
    1
    ,
    2
  5. Yoxall, Leslie
    1
  6. Yugoslavia
    1
    ,
    2
    ,
    3
  7. Britain and
    1
  1. Zagreb
    1
    ,
    2
    ,
    3
  2. Zimmermann Telegram
    1
    ,
    2
    ,
    3
  3. Zionism
    1
  4. Zygalski, Henrvk
    1
  5. Zygalski sheets
    1
    ,
    2

Alan Turing, the mathematical genius who designed the British bombe, and was a co-signatory of the Trafalgar day letter to Churchill.

National Portrait Gallery

Gordon Welchman, the first head of Hut 6, and co-signatory of the letter.

Gordon Welchman

Hugh Alexander, a leading Bletchley Park codebreaker (later the head of Hut 8) and co-signatory of the letter.

Sir Michael Alexander

Stuart Milner-Barry, a Bletchley Park codebreaker (who succeeded Gordon Welchman as the head of Hut 6), and co-signatory of the letter.

Lady Milner-Barry

The GC&CS diplomatic and commercial codebreaking operations at 7–9 Berkeley Street, London.

National Archives, College Park, Md

John Tiltman (right) with Alastair Denniston, the original head of the Government Code and Cypher School (left) and Professor E. R. P. Vincent.

National Archives, College Park, Md

Members of ‘Captain Ridley’s Shooting Party’ arriving at Bletchley Park.

Barbara Eachus

Mavis and Keith Batey, who worked on the
Abwehr
‘counter’ Enigma machine (below left).

Mavis and Keith Batey

Dilly Knox, the veteran codebreaker who broke a number of important codes and cipher machines, including the
Abwehr
‘counter’ Enigma (below).

Mavis Batey

Abwehr
Enigma machine (with ‘counter’ and
Umkehrwalze
that moved when enciphering).

David Hamer

The
Schlüsselgerät
41, invented by Fritz Menzer, which replaced some
Abwehr
Enigmas in late 1944.

NSA Center for Cryptologist History

Hugh Foss, who was the first person at GC&CS to solve Enigma, in the form of the C model, and also broke the pre-war Japanese naval attaché cipher machine.

Charles G. Foss

John Chadwick, who solved Italian naval codes in Cairo, and later became a Japanese translator at Bletchley Park.

Tony Chadwick

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