National Museum of Nuclear Science & History
J. A. Copeland worked for the Poe Piping & Heating Company.
R. E. Graves worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Helen Williams was a stenographer and clerk at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Mary E. Parrish was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
