National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
B. P. Rollyson worked for the Roane-Anderson Company.
T. A. Gamble worked for Clinton Laboratories at the X-10 Reactor.
Wisner worked for Stone and Webster Engineering Corporation.
Glen Montgomery was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.