National Museum of Nuclear Science & History
W. C. Keettel worked for the United States Engineer District Office.
Walter F. McCaleb served in the 393rd Bombardment Squadron.
Avery W. Rogers worked for J. A. Jones Construction Co., Inc. during the Manhattan Project.
Arthur N. Jaffey was an associate chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
