National Museum of Nuclear Science & History
MacDonald worked for Stone and Webster Engineering Corporation.
T. U. Foster worked for the H. K. Ferguson Company.
J. Robert Oppenheimer (1904-1967) was an American theoretical physicist. During the Manhattan Project, Oppenheimer was director of the Los Alamos Laboratory and responsible for the research and design of an atomic bomb.
George Struthers worked for Clinton Laboratories at the X-10 Reactor.
Harold E. Young was a staff worker at Los Alamos during the Manhattan Project.