National Museum of Nuclear Science & History
Glenn Volk was a staff worker at Los Alamos during the Manhattan Project.
H. B. Marcum worked for the Union Carbide & Carbon Corporation.
R. L. McDaniels worked for the Roane-Anderson Company.
Arnold E. Sleipnes served as a techical sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.