National Museum of Nuclear Science & History
John Arnold joined the Manhattan Project in 1943 when the MED tasked his employer, the Kellogg Corporation, with developing a special barrier for the gaseous diffusion plant in Oak Ridge.
P. G. Kinken worked for the United States Engineer District Office.
Norma Gwendelyn Wentworth Mathis, wife of Gilbert P. Mathis, was a US Army Signals Corps employee at Los Alamos.
C. W. Gray worked for the Edenfield Electric Company.
