National Museum of Nuclear Science & History
O. R. "Big" Simpson was a second lieutenant in military intelligence in charge of convoys carrying plutonium from Hanford to Fort Douglas, Utah.
N. F. Smyth worked for the Kellex Corporation at the K-25 Plant.
J. E. Westcott worked for the United States Engineer District Office.
Vincent Ogorman was a staff worker at Los Alamos during the Manhattan Project.