National Museum of Nuclear Science & History
E. H. Marsden worked for the United States Engineer District Office.
Naomi Livesay French was an American mathematician. During the Manhattan Project, she worked at Los Alamos for a group in the theoretical division responsible for performing calculations in connection to the theory of implosion.
Seth Neddermeyer (1907-1988) was an American physicist. Neddermeyer was recruited to work on the Manhattan Project by J.