National Museum of Nuclear Science & History
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.
R. J. McLeod worked for the United States Engineer District Office.
L. A. Riden worked for the Tennessee Eastman Corporation at the Y-12 Plant.