If this article piqued your interest, be sure to read Cryptonomicon by Neal Stephenson.
http://www.amazon.com/gp/product/B005LW5JL2/ref=as_li_ss_tl?...
Which is about WWII in the Pacific, up to the battle of Midway. He talks about the code breaking efforts in Hawaii, and I immediately recognized one of the minor characters from Cryptonimicon - the guy in charge of the cryptanalysis efforts - who was apparently a bit eccentric, and not big on military formalities. I didn't realize that the character in the book was based on someone real.
It's a very well written book, and I'd highly recommend it, as well, as, of course, Cryptonimicon.
Edit - here's a link that talks about him some: