National Museum of Nuclear Science & History
U. W. Allen worked for the William A. Pope Company.
Robert C. Hirt was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
John William Starner joined the Manhattan Project in December 1943 as a member of the Special Engineer Detachement at Los Alamos.
Henry J. Wollweber was a guard at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.