National Museum of Nuclear Science & History
Paul Snodgrass worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Nelson worked at the 300 Area at Hanford during the Manhattan Project.
Brooks worked at Los Alamos.
Alvin Graves (1909-1965) was an American physicist. Graves was invited to join the University of Chicago Metallurgical Laboratory and in 1942 he accepted the position and became a member of the Manhattan Project.