National Museum of Nuclear Science & History
Margaret Strombeck was a swtichboard operator at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Margaret Caldes moved to Los Alamos when her husband, William E. Caldes, was recruited to join the project in 1943.
F. C. Ruh worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Elton H. Turk was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.