National Museum of Nuclear Science & History
L. R. Zumwalt worked for the United States Engineer District Office.
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.
Mr. U. M. Staebler graduated from the University of Kansas with a B.S. degree in Physics in 1942, and had since devoted his entire professional career to the field of nuclear energy.
