National Museum of Nuclear Science & History
John Vach was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Arthur N. Jaffey was an associate chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Jean Dabney was an electronics technician at Los Alamos during the Manhattan Project. Her husband Winston Dabney also worked at Los Alamos.
Leo Perreault worked for the United States Engineer District Office.
