Dr Jackie Ui Chionna

'One of the greatest codebreakers of the twentieth century' Suzannah Lipscomb An astounding story of codebreaking, personal sacrifice, and a life lived in the shadows. The history of British codebreaking is often considered a men-only preserve, ignoring the fact that the vast majority of codebreakers were women. Foremost among them was one who is largely unknown to the public: Emily...