National Museum of Nuclear Science & History
H. J. Mack worked for the Edenfield Electric Company.
Peter Korzaan served the Manhattan Project in the Provisional Engineering Detachment (PED) at Los Alamos from 1945 to 1946.
J. J. Morrissey worked for the United States Engineer District Office.
Rozel E. Curtis was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.