National Museum of Nuclear Science & History
J. T. Holloway worked for the United States Engineer District Office.
Kenneth Zaring was a staff worker at Los Alamos during the Manhattan Project.
Peter Watkins was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Grace R. Harvey was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.