National Museum of Nuclear Science & History
Don Cowen worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Arthur S. Opsahl served in the 603rd Air Engineering Squadron.
G. H. Clewett worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Raymond C. Grills is an American physical chemist who worked at the University of Chicago’s Metallurgical Laboratory and at Hanford during the Manhattan Project.
