The Arlington Hall address team had well-kept records, and Wilma Berryman remembered some Japanese Army messages with addresses that might be the same as these Navy ones. She found them and began fiddling around, writing the plain words from the Navy address codes below the Army ciphers. “I sort of remembered having seen something in that file and I went back to the file and found it,” was how she put it later. “I found what I thought looked like it ought to be that, the same thing. I had it on my desk and I just wasn’t positive.” Suddenly she noticed one of the men who worked with their unit,
...more
