National Museum of Nuclear Science & History
George A. Ullrich was a chemist who performed analytical research at Clinton Laboratories in Oak Ridge, TN during the Manhattan Project.
Everett Ellis worked for the H. K. Ferguson Company.
Melvin Bengston was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Raymond Frank was a metallurgist at the University of Chicago and stayed with the Met Lab after graduating from the university.
