Thanks John, Great Sources. Regards, Dave John Wilson wrote: > Hi All: > > The Australians (Eric Nave), British (John Tiltman) & the Dutch (in > the Netherlands East Indies) were also intercepting and decoding > Japanese messages pre-WWII, see "The Emperor's Codes" by > Michael Smith, and these articles (below) from Australia and on John > Tiltman. Unfortunately the official histories of the British GC&CS > (Bletchley Park) by Hinsley etc do not cover the Japanese (Far East): > > http://www.awm.gov.au/journal/j35/straczek.htm > http://en.wikipedia.org/wiki/John_Tiltman > http://www.findarticles.com/p/articles/mi_qa3926/is_200310/ai_n9311691/pg_5 > > The US Navy tended to be tightfisted with their codebreaking work, > both with the US Army (part of the problem pre-Pearl Harbour) and > with the British. > > Yours, John Wilson (New Zealand) > > >> Actually in the early 1930's the US Navy was the only source of >> > intercepted > >> traffic from the Japanese, the US Army, in the 1930's, also got interested >> in crytoanalysis, In 1930 after the collapse of Yardley's New York "Black >> Chamber", William F. Friedman was given the task of creating an Army >> cryptologic capability in the office of the Chief Signal Officer, he >> > started > >> with 4 civilian students - Frank Rowlett, Solomon Kullback, Abraham Sinkov >> and John Hurt, their training lead to the compilation of War Department >> codes and ciphers and the solution of foreign military and diplomatic >> codes and ciphers. >> You can go to the NSA web site and read about the history of cryptology. >> >> > > > ==== WORLDWAR2 Mailing List ==== > To post queries/answers to the list, send an email to: WORLDWAR2-L@rootsweb.com We are an international list. Please remember to tell us what country your ancestor was from and what country you are in now if different. This helps us help you. If you give dates please help us understand the date you are referring to. For example: 4 Nov 1944 or Nov 4, 1944. > > ============================== > New! Family Tree Maker 2005. Build your tree and search for your ancestors at the same time. Share your tree with family and friends. Learn more: http://landing.ancestry.com/familytreemaker/2005/tour.aspx?sourceid=14599&targetid=5429 > > > >