National Museum of Nuclear Science & History
H. R. Kroegar worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Henry Manley (1907-1990) was an American physicist. Manley worked on the Manhattan Project almost from its beginning, starting at the Metallurgical Lab at the University of Chicago.
Chester J. Krajewski served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.
Brevard worked in the United States Engineer District Office.