National Museum of Nuclear Science & History
R. S. Berry worked for the J.A. Jones Construction Company.
Chamberlain worked at the 300 Area at Hanford during the Manhattan Project.
James Gordon was an electrical engineer working as a civilian contractor for the DuPont Company at the Hanford, Washington site for the Manhattan Project.
E. A. Hetzner worked for the Oak Ridge Recreation and Welfare Association.
Raymond C. Grills is an American physical chemist who worked at the University of Chicago’s Metallurgical Laboratory and at Hanford during the Manhattan Project.