National Museum of Nuclear Science & History
J. T. Holloway worked for the United States Engineer District Office.
Daniel J. Keefe was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Gloria A. Larranaga was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”0 during the Manhattan Project.
Niels Thude was a staff worker at Los Alamos during the Manhattan Project.