National Museum of Nuclear Science & History
O’Black worked in the 200 East Area at Hanford during the Manhattan Project.
Victor Yack was a member of the Military Police at Los Alamos and at Sandia Base in Albuquerque from 1946 to 1947.
A member of the Special Engineer Detachment of the U.S. Army, Ray Stein participated in the Manhattan Project at Oak Ridge and was assigned to the Y-12 Plant.
