National Museum of Nuclear Science & History
Martens worked in the 200 West Area at Hanford during the Manhattan Project.
Robert Harrison was an engineer in the Special Engineering Detachment (SED) in Oak Ridge, Tennessee from August 1944 to August 1945.
Reeder served as a sergeant in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.
Edwin Halbur served in the 1395th Military Police Company, Aviation.