National Museum of Nuclear Science & History
Robert Leroy Platzman was a chemist at the University of Chicago Metallurgical Laboratory during World War II.
J. M. Henry worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Richard Stephens worked for the United States Engineer District Office.
Lorraine Barbic was a technical worker in the Chemical Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.