National Museum of Nuclear Science & History
John Sommer worked for the Roane-Anderson Company.
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.
Dale D. Kvam served in the 1st Ordnance Squadron.
Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.