National Museum of Nuclear Science & History
Walter Youngs, Jr. worked for the United States Engineer District Office.
Daniel J. Keefe was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
George Graves was a technical advisor at Hanford, and so famous there that he inspired a poem: "We'd called up a tight design/ Hewn strictly to the longhairs' line.
F. B. Wheeler worked for the Tennessee Eastman Corporation at the Y-12 Plant.