National Museum of Nuclear Science & History
Thomas Braswell worked on the assembly line for Mallinckrodt Chemical, a civilian contractor for the Manhattan Project in St.
Crawford Greenewalt (1902-1993) was an American chemical engineer. He was one of the managers of the Manhattan Project for DuPont.
Jane Sievers worked on the Manhattan Project at Hanford. She met her husband, chemist Truman P. Kohman, while living in Richland.
Otto Nillige was a carpenter at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
