National Museum of Nuclear Science & History
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.
O’Black worked in the 200 East Area at Hanford during the Manhattan Project.
Ralph Lawson worked for the United States Engineer District Office.
Macguire worked in the 300 Area at Hanford during the Manhattan Project.