The Manhattan Project

Manhattan Project Voices

Voices of the Manhattan Project

Chicago Pile-1 scientists"Voices of the Manhattan Project" is a joint project by the Atomic Heritage Foundation and the Los Alamos Historical Society to create a public archive of our oral history collections of Manhattan Project veterans and their families. 

Our online collection features 400 audio/visual interviews with Manhattan Project workers and their families, including J. Robert Oppenheimer, General Leslie R. Groves, Glenn Seaborg, Hans and Rose Bethe, George and Vera Kistiakowsky, and many more. We add new interviews every week, so check back often! 

"Voices" now includes interviews with some of the men who flew on the bombing missions.

Recent Oral Histories

J. Robert Oppenheimer's Interview

In this rare interview, J. Robert Oppenheimer talks about the organization of the Manhattan Project and some of the scientists that he helped to recruit during the earliest days of the project. Oppenheimer discusses some of the biggest challenges that scientists faced during the project, including developing a sound method for implosion and purifying plutonium, which he declares was the most difficult aspect of the project. He discusses the chronology of the project and his first conversation with General Leslie Groves. Oppenheimer recalls his daily routine at Los Alamos, including taking his son Peter to nursery school.

Milton Levenson's Interview

Milton Levenson's Interview

Milton Levenson is an American chemical engineer and former president of the American Nuclear Society who has worked in the nuclear energy field for more than 60 years. During the Manhattan Project, he worked at Decatur, IL, and Oak Ridge, TN, where he was a supervisor at the X-10 plant. In this interview, he describes how he joined the Manhattan Project and his experiences at Oak Ridge, including his memories of segregation there. Levenson then talks about his post-war career as an expert on nuclear safety, including his role in responding to the SL-1, Three Mile Island, and Chernobyl accidents. He also recalls having to tell Enrico Fermi that he could not perform an experiment for safety reasons.

Esther Vigil's Interview

Esther Vigil's Interview

Esther Vigil was living in the Española Valley with her family when Los Alamos was selected as a site for the Manhattan Project. She attended school at Los Alamos for several years. Both she and her mother worked at Los Alamos, babysitting for famous scientists like Edward Teller and Stanislaus Ulam. Vigil also worked for the Supply and Property Department. In this interview, she discusses not only her experiences at Los Alamos but also her later contributions to preserving local culture, a passion her mother also shared. She also explains how she helped preserve and reintroduce the tradition of colcha embroidery.

Rachel Bronson's Interview

Rachel Bronson's Interview

Rachel Bronson has served as the Executive Director of the Bulletin of the Atomic Scientists since February 2015. In this interview, she discusses the role the Bulletin plays today in informing the public on threats posed by nuclear weapons, climate change, and emerging technologies. She articulates Manhattan Project veteran and Bulletin co-founder Eugene Rabinowitch’s concerns about the “Pandora’s box of modern science.” She also describes an exhibit opening in May 2017 that the Bulletin is putting together in partnership with the Museum of Science and Industry in Chicago.