National Museum of Nuclear Science & History
E. T. O'Conner worked for the Roane-Anderson Company.
Paul R. O’Connor was a junior chemist at the University of Chicago Met Lab during the Manhattan Project.
Coffey worked at the 300 Area at Hanford during the Manhattan Project.
Dunnebecke worked in the United States Engineer District Office.
William R. Purnell (1886-1955) was a Rear Admiral in the US Navy and served as the Navy liaison on the Military Policy Committee for the Manhattan Project.
