Oral Histories

John Manley was a nuclear physicist who worked for the Manhattan Project from its early days. In this interview with Martin Sherwin, Manley recalls being impressed by George Kennan and Omar Bradley’s testimony before the Atomic Energy Commission. He also discusses the contributions to the project and personalities of General Kenneth Nichols, General Leslie Groves, and Peer de Silva. He also explains the founding of Los Alamos and and reflects on Oppenheimer’s transition into the “great administrator.”

Norris Bradbury worked as a physicist on the Manhattan Project and served as director of the Los Alamos National Laboratory from 1945-1970. In this interview, he recalls the challenges of running LANL and how he admired the way J. Robert Oppenheimer had managed it during the war. He explains the decision behind moving ahead with developing the hydrogen bomb, and why Oppenheimer opposed it. Bradbury recalls how the transfer of nuclear weapons control from military to civilian hands went, and how he and his staff interfaced with the Atomic Energy Commission. He also discusses the personality and legacy of Oppenheimer, General Leslie Groves, and Edward Teller.

David Hawkins served as an administrative aide at the Los Alamos Laboratory in 1943 and as the Manhattan Project’s historian in 1945-46. In that role, he had free access to all the top people involved, including project director J. Robert Oppenheimer and physicist Edward Teller. In this interview, he discusses the nature of Communist activity among the intellectual community in Berkeley California—a community that included a number of future Manhattan Project scientists. He describes his experiences working directly under Oppenheimer during his stint at Los Alamos, noting his charisma as well as his hubris. He describes that work; the copious and all-encompassing research that was required from his position as project historian. Finally, he concludes by discussing the years after the war, and his and his wife’s relationships with Clifford and Virginia Durr.

Joseph Rotblat was a British-naturalized Polish physicist, 1995 Nobel Peace Prize winner, and founder of the Pugwash Conferences. Rotblat and his friend James Chadwick, discoverer of the neutron, conducted early research on the atomic bomb in England, and both joined the British Mission at Los Alamos working on the Manhattan Project. Rotblat left the Manhattan Project on grounds of conscience in late 1944 when it became clear Germany was not close to developing an atomic bomb—the only scientist to leave the project for moral reasons. In this interview, he discusses his personal and professional relationships with J. Robert Oppenheimer, Niels Bohr, and the Chadwick family. He also provides insight into the intense security measures in place at Los Alamos, as well as the nature of British involvement at the site. Perhaps most intriguing is Roblat’s discussion of his decision to leave Los Alamos, spurred on by his growing concern that the nuclear weapons being created were also meant for the Soviet Union, and his anxiety over a postwar arms race. In a lighter vein, Rotblat also recalls his work as a technical advisor on the 1980 miniseries “Oppenheimer.”

John DeWire was a physicist who was recruited by J. Robert Oppenheimer to work on the Manhattan Project in Los Alamos. In this interview, DeWire discusses how he was recruited, the move to Los Alamos, the organization and administration at Los Alamos, and the unusual speed with which scientists could procure items. He explains how he came to work at Princeton, and his involvement after the war in opposing Lewis Strauss’s nomination for Secretary of Commerce. He recalls what made Oppenheimer such an effective leader.

Eleanor Roensch worked as a telephone operator in Los Alamos. She remembers a fire breaking out in one of the technical buildings and the concern over coded telegrams, sent by scientists like Rudolf Peierls.