National Museum of Nuclear Science & History
Roy Schroeder was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
John M. Sprecher was a chemical engineer. During the Manhattan Project, he worked for DuPont in Wilmington, DE.
B. P. Fisher worked for the Comstock-Bryant Electric Company.
Samuel R. Macaione was a member of the Special Engineering Detachment at Los Alamos. He was known primarily not for his work, but for his membership in the thirteen-member swing band at Los Alamos, "The Keynotes.
