National Museum of Nuclear Science & History
Perry worked in the 200 West Area at Hanford during the Manhattan Project.
H. A. Rehnberg worked for the Kellex Corporation at the K-25 Plant.
Norman F. Modine was a research assistant at the University of Chicago Met Lab. He was a signer of the Szilard petition.
H. F. Koch worked for the Tennessee Eastman Corporation at the Y-12 Plant.