National Museum of Nuclear Science & History
Nelle Gaddy worked for the J.A. Jones Construction Company.
Richard Sullivan worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Crawford Greenewalt (1902-1993) was an American chemical engineer. He was one of the managers of the Manhattan Project for DuPont.
Neff worked at the 100-F Area at Hanford during the Manhattan Project.