National Museum of Nuclear Science & History
Langworthy worked in the 200 East Area at Hanford during the Manhattan Project.
Harold Hasenfus was part of the Special Engineer Detachment during the Manhattan Project and worked at the University of Chicago's Metalurgical Laboratory and at the gaseous diffusion plant in Oak Ridge.
Ray Sheehan worked for the United States Engineer District Office.
G. R. McLeod worked for the Tennessee Eastman Corporation at the Y-12 Plant.
