National Museum of Nuclear Science & History
T. J. O’Donnell was the Shop Chief at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
P. F. Grieger worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Bradford worked in the United States Engineer District Office.
James Sircom Allen (1911-1982) was a Canadian-American physicist who worked at the Massachusetts Institute of Technology and Los Alamos during the Manhattan Project.