National Museum of Nuclear Science & History
Richard F. Taschek (1915-2005) was a nuclear physicist at the Manhattan Project’s Los Alamos facility and the Los Alamos National Laboratory.
Myrtle E. Karcher was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
John Costa worked at the shop in the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
K. M. Whitlesy worked for the United States Engineer District Office.