National Museum of Nuclear Science & History
Tom Mulcahey was a staff worker at Los Alamos during the Manhattan Project.
P. S. Vincent worked for Clinton Laboratories at the X-10 Reactor.
Butler worked at Los Alamos during the Manhattan Project.
Meyer Steinberg is a chemical engineer and a veteran of the Special Engineer Detachment. After graduating from Cooper Union College with a degree in chemical engineering, Steinberg was drafted and placed in the Special Engineer Detachment at Oak Ridge.