the Colossus computer Leonard Forster Hugh Foss, cryptographer, head of the Japanese Naval Section (Hut 7) from 1942 to 1943 Freddy (Frederick) Freeborn, ran the Tabulating (index) Section in Block C (formerly Hut 7; former head of BTM's Letchworth factory. Alfred Friendly, US Army Air Force (editor of the Washington Post) Joshua David Goldberg, Japanese codebreaker, solicitor Harry Golombek (chess player) I. J. (Jack) Good Raymond Goodman, head of one shift in Naval Intelligence under Frank Birch Valerie Glassborow, grandmother of Kate Middleton, Duchess of Cambridge, worked in Hut 16 along with her twin sister [12] Colin Grazier, Able Seaman RN was posthumously awarded the George Cross for the "for outstanding bravery and steadfast devotion to duty in the face of danger" that he displayed on 30 October 1942 in boarding, with Lieutenant Francis Fasson, the sinking U-559 and recovering 'short signal' codebooks which provided a breakthrough in Cryptanalysis of the German Naval Enigma but losing his life in the process Nigel de Grey, cryptologist, in World War I helped decrypt the Zimmermann Telegram Philip Hall John Herivel, arrived at Bletchley Park in January 1940; discoverer of the "Herivel Tip"; later worked in administration in the "Newmanry" (science historian) Peter Hilton, arrived at Bletchley Park in January 1942, worked in Hut 8 until late 1942, moved to Research Section to work on Fish, later in Testery (topologist) Harry Hinsley (historian) James Hogarth, worked on German naval cyphers e.g. Reservehandverfahren Gwen Hollington, worked in Hut 4, Bletchley Park, translating decrypted German naval communications Leonard Hooper (Director of GCHQ) Dorothy Hyson (American-born West End actress ) John Jeffreys, supervised manufacture of perforated sheets; initially in charge of Hut 6 with Welchman until May 1940; died in early 1941 (mathematician) Roy Jenkins, codebreaker in the Testery (Labour Member of Parliament and government minister; first British President of the European Commission (1977–81); one of the four principal founders of the Social Democratic Party (SDP) in 1981, ennobled as Baron Jenkins of Hillhead; distinguished writer, especially of biographies) Jones, Sergeant (later Squadron Leader); given overall responsibility for Bombe maintenance by Travis. Daniel Jones, Japanese, Romanian and Russian codebreaker (Welsh composer) Eric Jones, head of Hut 3 (Director of GCHQ) Joan Joslin, cryptanalyst whose work helped lead to the sinking of the Scharnhorst Harold Keen, BTM engineer who built the British bombes Marjorie Jean Oswald Kennedy Dilly Knox, leading cryptologist, cracked the code of the commercial