National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
Wilber A. Stevens was an army officer in charge of overseeing construction at Los Alamos. He helped choose the site where the Manhattan Project would test its first atomic bomb.
F. M. Downs worked for the J.A. Jones Construction Company.
Charles Quincy worked for the Tennessee Eastman Corporation at the Y-12 Plant.
