National Museum of Nuclear Science & History
Robert Plott was a research assistant at the Chicago Met Lab during the Manhattan Project.
Clayton Plummer worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Fred Whitehead was a staff member at Los Alamos during the Manhattan Project.
William E. Caldes studied chemical engineering at Princeton University. In 1943, he was recruited to join the Manhattan Project, and became the 19th project member at Los Alamos.