National Museum of Nuclear Science & History
Francis O’Sullivan worked for the United States Engineer District Office.
Olge W. Hess was a research assistant at the University of Chicago’s Metallurgical Laboratory.
H. S. Brown worked for Clinton Laboratories at the X-10 Reactor.
John Raper worked for Clinton Laboratories at the X-10 Reactor.
R. L. Milling worked for the J.A. Jones Construction Company.