Oral Histories

James S. Cole is an American engineer. He served as an airplane engineer during World War II, and began working at the K-25 plant at Oak Ridge, TN in 1945, shortly after the end of the war. Cole later worked at the Y-12 plant. In this interview, he recalls his early days at Oak Ridge and how he adjusted to the new environment. He shares several stories about his time working at K-25, including finding ways to fix broken pumps and valves. He also explains the importance of the Special Engineer Detachment and members of the military to the Manhattan Project.

Gordon Fee is the retired president of Lockheed Martin Energy Systems and the former manager of the Y-12 nuclear weapons plant in Oak Ridge, TN. He began working at Oak Ridge at the K-25 gaseous diffusion plant in 1956. In this interview, he describes his career at Oak Ridge, and shares stories about his work at Y-12 and Oak Ridge National Laboratory (ORNL). In particular, he focuses on scientific developments connected with Oak Ridge, including the growth of the Nuclear Navy, the use of radioisotopes in medicine, and more. He also discusses the challenges of trying to explain Oak Ridge’s complex history to the public.

Roger Stover is a nuclear engineer and U.S. Army veteran. In this interview, Stover discusses his work conducting radiation tests during nuclear tests at Eniwetok and at the Nevada Test Site. He recalls the overwhelming experience of witnessing both hydrogen bomb tests and fission nuclear weapon tests. Stover also describes his nuclear reactor work with the Westinghouse Nuclear Fuel Division in Pittsburgh, Oak Ridge National Laboratory, and Argonne National Laboratory, and at Hanford Site. He also comments on the lasting legacies of the Manhattan Project and the future of nuclear energy. Finally, he remembers teaching physics in Pakistan for one year.

Dorothy Ritter is the daughter of Manhattan Project veteran Francis Oley. Oley worked at the K-25 gaseous diffusion plant in Oak Ridge, TN. His job required him and his family to move from New York to Oak Ridge. Ritter spent several years of her childhood in Oak Ridge. In this interview she reminisces about the simplicity of her life there, and discusses how living and working at Oak Ridge impacted her family. She recalls the strain her father was under during the project, and the house they lived in. She also explains how the excellent teachers she had at Oak Ridge influenced her to become a teacher.

J.C. Hobbs was an American inventor and engineer who created a key part of the valves used in the K-25 gaseous diffusion plant in Oak Ridge, Tennessee. Hobbs was brought on to the Manhattan Project by the head of the Kellex Corporation, Percival Keith, to improve the piping system in the K-25 plant. In part three of his interview with Stephane Groueff, Hobbs discusses the key role he played in troubleshooting problems for K-25 and for other power plants across the country. He emphasizes the importance of the efficiencies he introduced at K-25, and describes some of the technical challenges he and his colleagues faced.

J.C. Hobbs was an American inventor and engineer who created a key part of the valves used in the K-25 gaseous diffusion plant in Oak Ridge, Tennessee. Hobbs was brought on to the Manhattan Project by the head of the Kellex Corporation, Percival Keith, to improve the piping system in the K-25 plant. In this interview, Hobbs discusses his career in industrial engineering, the work environment in New York, and the development of the valves that proved crucial to the success of gaseous diffusion.

Leroy Jackson and Ernest Wende were transferred into the Manhattan District, the branch of the United States Army Corps of Engineers tasked with overseeing the construction of critical Manhattan Project sites, shortly after its formation in 1942. They both lived and worked at Oak Ridge during the war and were closely involved in the design and construction of the site’s thousands of residential units and cafeterias and recreational facilities, as well as the Y-12 and K-25 Plants and the X-10 Graphite Reactor. Their work required close coordination with private architectural and engineering firms, like Stone & Webster and Skidmore, Owings & Merrill. They discuss the power structure of Oak Ridge during the Manhattan Project, the restrictions imposed on Oak Ridge residents for the maintenance of secrecy, and the compartmentalization of building projects. They also explain the challenges of life in Oak Ridge and how the government had to step in to provide maintenance and services.

In this interview, General Groves discusses the design of the K-25 Gaseous Diffusion plant in Oak Ridge and the dispute with the Tennessee Valley Authority to supply power to the plant. He explains in detail the delivery schedule for enriched uranium and the timeline leading up to the bombing of Hiroshima and Nagasaki. Groves also discusses the organization of security and counterintelligence established during the Manhattan Project and supervised by Colonel John Lansdale.

In the second part of his in-depth interview with journalist Stephane Groueff, General Kenneth Nichols discusses his key role in the Manhattan Project and the chain of command. He explains his relationship with fellow Manhattan Project directors General Leslie R. Groves, Secretary of War Henry Stimson, and scientists Vannevar Bush and James B. Conant. Nichols recalls purchasing 1,200 tons of uranium ore from Belgian Edgar Sengier for the project and the challenges of developing a barrier for the gaseous diffusion plant. He also discusses financial accountability and Congressional oversight of the project.

Nancy Bartlit is the former president of the Los Alamos Historical Society and co-author of Silent Voices of World War II: When Sons of the Land of Enchantment Met Sons of the Land of the Rising Sun. Her father worked on the Manhattan Project in New York City, Oak Ridge, and Canada. Bartlit talks about how her experiences teaching at a girls’ school in Japan and living in Los Alamos influenced her work as a historian. She discusses Japan’s surrender, the internment of Japanese Americans, Navajo Code Talkers, and how Japan remembers the bombings today.