National Museum of Nuclear Science & History
W. V. Murphy worked for General Electric.
John Weil was a member of the Special Engineer Detachment serving at Los Alamos from early 1943 through the end of the war.
H. H. Maples worked for the Roane-Anderson Company.
Harold L. Weiss served in the 390th Air Service Group.
Jacob Epting worked as a carpenter in Oak Ridge, TN from November 1942 to October 1943. While Epting assumed he was building a hospital, he was never formally told about the project he was working on.