National Museum of Nuclear Science & History
Ross Guillet worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Helgeson worked at the 300 Area at Hanford during the Manhattan Project.
Warren L. Coble served as a sergeant in the 393rd Bombardment Squadron. Coble was regularly assigned as a radio operator in the Up An’ Atom, but did not fly in that plane during the August 1945 bombing missions on Hiroshima and Nagasaki.
He attended California Polytechnic State University in San Luis Obispo and University of California Berkeley.