National Museum of Nuclear Science & History
Holl worked for Stone and Webster Engineering Corporation.
Kenneth Wiley was a staff worker at Los Alamos during the Manhattan Project. Prior to joining, he worked in California building ships for the war effort.
Marle Velde worked for the Kellex Corporation at the K-25 Plant.
Harold Riley was an American chemical engineer. After graduating from North Carolina State College, Riley began his career working as a rayon technician at the DuPont Company.
Hayes worked at the 300 Area at Hanford during the Manhattan Project.