National Museum of Nuclear Science & History
Piper worked for Stone and Webster Engineering Corporation.
Woodrow Evans worked as a mechanic on the alpha racetracks at the Y-12 Plant in Oak Ridge, Tennessee from March 1944 to October 1945.
Roy Schroeder was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Hamilton worked at the 300 Area at Hanford during the Manhattan Project.