National Museum of Nuclear Science & History
McKenzie worked for Stone and Webster Engineering Corporation.
G. Robert Gunther-Mohr joined the Manhattan Project in 1944. Mohr worked on the top secret polonium trigger being developed for the plutonium bomb at the Monsanto Chemical Company in Dayton, Ohio.
Reeder served as a sergeant in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.