Teacher, physicist, and administrator, J. Robert Oppenheimer was Director of the Manhattan Project at Los Alamos from March, 1943, to October, 1945. During those years he directed a force of nearly 6000 scientific and military employees under conditions which were seldom free from intense mental strain. Certainly he knows as much about the potential of atomic energy as any living American, and his urge for peace, his belief that we must be governed by open-mindedness in our international responsibility for the atomic bomb, are characteristic of what Secretary Stimson termed his "genius and leadership."
