Soon after her officer training in Washington, she was recruited to a classified code-breaking team. She kept her work secret for decades, even from her family.

Rosenwald Julia Parsons, a U.S. Navy code breaker during World War II who ... German military messages that had been created by an Enigma machine, a typewriter-size device with a keyboard wired ...

"My dad would never talk about his time during the war, or for that matter anything about the war. We only found out that he ...

The papers, which include the wartime codebreaker's personal signed copy of his 1938 PhD dissertation, were found in the loft ...

Following that meeting she was sent to Bletchley, where she operated a Bombe machine, developed by Alan Turing, to help crack the Enigma code used by the Nazis. She said she had kept the details ...

When one letter key of an Enigma machine was pressed, its corresponding code letter would light up. The device would always return a different letter, even if the same key were pressed twice.

The Enigma code, once deemed unbreakable by Nazi Germany ... programmes and solved almost instantly.” The original Enigma machine had an astronomical number of possible settings, changed daily ...