National Museum of Nuclear Science & History
Hart worked for Stone and Webster Engineering Corporation.
Allen worked at the 200 West Area at Hanford during the Manhattan Project.
Stanley P. Elder, Jr. served in the 393rd Bombardment Squadron.
R. K. Cooke served in the 390th Air Service Group.
Alvin Vanvessem was a member of the Special Enginner Detatchment (SED) at Los Alamos during the Manhattan Project.