National Museum of Nuclear Science & History
Rose Pingel was a staff worker at Los Alamos during the Manhattan Project.
DeRenzis worked in the United States Engineer District Office.
Matheny worked in the 100 F Area at Hanford during the Manhattan Project.
Frank Gerhart worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Melba Johnston worked for Clinton Laboratories at the X-10 Reactor.