National Museum of Nuclear Science & History
Groom worked at the 300 Area at Hanford during the Manhattan Project.
Edward Denari worked for the Kellex Corporation at the K-25 Plant.
Stanley Krzyck was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Gerow worked in the United States Engineer District Office.
Butler worked at the 300 Area at Hanford during the Manhattan Project.