Genevieve Grotjan: An Unsung American Heroine Genevieve Grotjan broke the Japanese Purple Code, and made significant inroads on the Soviet Venona Project which clearly showed Alger Hiss worked for the GRU, among many other revelations. https://en.wikipedia.org/wiki/Genevieve_Grotjan_Feinstein For the larger picture, see: https://www.smithsonianmag.com/history/how-women-codebreakers-wwii-helped-win-war-180965058/
