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.
Hayes worked at the 300 Area at Hanford during the Manhattan Project.
Charles Mallon worked for the Kellex Corporation at the K-25 Plant.
H. Hoessly worked for the Roane-Anderson Company.
