National Museum of Nuclear Science & History
Harmon worked for Stone and Webster Engineering Corporation.
Winifred T. Koziolek was a laboratory technician the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Fisher worked for Stone and Webster Engineering Corporation.
E. H. Halbrook worked for the J.A. Jones Construction Company.
Virginia Meschke was a chemist and technician at the University of Chicago Met Lab. She specialized in plutonium chemistry.