National Museum of Nuclear Science & History
O’Black worked in the 200 East Area at Hanford during the Manhattan Project.
Raymond Dujack was a young lab technician at the Special Alloyed Materials (SAM) Laboratories at Columbia University.
Lawrence Glendenin was a research assistant in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
James R. Chapman was an engineer working for Stone & Webster when he was recruited to work on the Manhattan Project.