From the Fresnobee:
For 50 years, Penny Mirigian kept the secret about what she really did in the Navy WAVES during World War II. When people asked, she simply said: "I was a radio operator."
"Spy" would have been closer to the truth. From 1943 to 1945, Mirigian was part of an elite group of "intercept operators" who typed up Japanese radio broadcasts to be decoded. The work was top secret.