National Museum of Nuclear Science & History
Dorothy worked at Oak Ridge during the Manhattan Project as a “calutron girl.” After her brother was killed in the attack on Pearl Harbor, she was eager to join the war effort, and did so starting in 1944.
Colonel Franklin Matthias (1908 – 1993) was the officer-in-charge at the Hanford site. Matthias, a civil engineer, had been a close associate of General Groves since the beginning of the Manhattan Project, and was asked to review sites in the West.