National Museum of Nuclear Science & History
Marshall worked in the 300 Area at Hanford during the Manhattan Project.
Julian Mack was an American physicist. Mack was the leader of Group G-11 (Optics), the photography group, in the Weapons Physics Division at Los Alamos during the Manhattan Project.
Barr worked for Stone and Webster Engineering Corporation.
James R. Corliss served as a technical sergeant in the 393rd Bombardment Squadron. He was regularly assigned to work as a flight engineer on the Up An’ Atom but did not fly in that plane during the August 1945 bombing missions on Hiroshima and Nagasaki.