National Museum of Nuclear Science & History
Duffer Crawford worked for the civilian contractor Kellex Coroporation in New York under the supervision of Judson Swearingen.
Smith worked at the 200 West Area at Hanford during the Manhattan Project.
W. G. Roman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Paul W. Levy was an American physicist. After receiving his undergraduate degree from the University of Chicago in 1943, Levy joined the Manhattan Project at the University’s Metallurgical Laboratory.