National Museum of Nuclear Science & History
W.B. Shank was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
C. Varuzzo worked for the United States Engineer District Office.
Chester Twork served in the 393rd Bombardment Squadron.
Thornburg worked for Stone and Webster Engineering Corporation.
Leo P. Hassen was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.