National Museum of Nuclear Science & History
Leroy Hartmann (1922 – 1944) was an electrical engineer in the Special Engineer Detachment Manhattan District CE in Oak Ridge.
P. B. Evans worked at the 200 West Area at Hanford during the Manhattan Project.
Arthur Julius Olofson joined the Manhattan Project at Los Alamos in June 1944. Olofson developed specialized tools for components of the atomic bomb under Dr.
