National Museum of Nuclear Science & History
Libby worked in the 200 W Area at Hanford during the Manhattan Project.
M. Pescho served in the 390th Air Service Group.
A. J. D’Arcy worked for the Union Carbide & Carbon Corporation.
George L. Brabenec was a master sergeant in the 393rd Bombardment Squadron. He served as the flight engineer of the Necessary Evil, but flew in the Big Stink during the Nagasaki mission.