National Museum of Nuclear Science & History
Part of the Special Engineer Detachment (SED), Donald C. Harms was first sent to Oak Ridge, Tennessee, to work on the Manhattan Project.
Norma Gwendelyn Wentworth Mathis, wife of Gilbert P. Mathis, was a US Army Signals Corps employee at Los Alamos.
Abraham L. Longfield was a Procurement and Property Officer for the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
