She was 18 and studying at a domestic science college near Shrewsbury in Shropshire when she and others on her course had decided "we ought to be serving our country rather than making sausage rolls".
Betty worked at Bletchley Park as a member of the Auxiliary Territorial Service from 1941 to 1945, indexing German messages and paraphrasing Japanese signals. She later deciphered Japanese messages at The Pentagon in the US, during the Pacific War, and was awarded France's highest distinct...