National Museum of Nuclear Science & History
Rupea worked at the 300 Area at Hanford during the Manhattan Project.
Stanley Liebert was a machinist in the SAM Laboratory at Columbia University between 1944 and 1945.
Raymond P. Biel served as a second lieutenant in the 393rd Bombardment Squadron. He was the co-pilot of the B-29 Full House, which served as a weather reconnaissance plane on the Hiroshima bombing mission, and the backup strike plane on Iwo Jima on the Nagasaki mission.