National Museum of Nuclear Science & History
Ted C. Irwin served in the 393rd Bombardment Squadron.
L. E. Dunkelberger worked at the 200 West Area at Hanford during the Manhattan Project.
Joseph Caldwell was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
C. D. W. Thornton worked for the Tennessee Eastman Corporation at the Y-12 Plant.