National Museum of Nuclear Science & History
Arthur Sievert worked for Hanley & Company.
Robert E. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
O’Black worked in the 200 East Area at Hanford during the Manhattan Project.
Badenoch worked at the 200 East Area at Hanford during the Manhattan Project.
Jacobs worked for Stone and Webster Engineering Corporation.
