National Museum of Nuclear Science & History
Walter Youngs, Jr. worked for the United States Engineer District Office.
Arnold graduated from Northwestern University in 1941 with a B.S. degree in Biology and a minor in Chemistry.
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.
