National Museum of Nuclear Science & History
F. E. Clark worked for the Tennessee Eastman Corporation at the Y-12 Plant.
L. E. Johnston worked for the United States Engineer District Office.
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.
Gilbert worked at the 200 West Area at Hanford during the Manhattan Project.
