National Museum of Nuclear Science & History
H. L. Russell worked for the United States Engineer District Office.
P. M. Putnam worked for the J.A. Jones Construction Company.
Harvey B. Lemon (1885-1965) was a consultant to the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Emilio Segrè (1905-1989) was an Italian physicist and winner of the 1959 Nobel Prize in Physics.