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National Museum of Nuclear Science & History

Oral Histories

William Lowe’s Interview

William Lowe was studying chemical and metallurgical engineering when World War II began. A member of the Special Engineering Detachment, he arrived in Los Alamos and began assisting chemist Arthur Wahl. Lowe recalls working with Wahl on the process for purifying the plutonium for the Gadget and the bombs, and talks about the safety procedures they used to minimize risk of radiation exposure. Lowe later worked on building new reactors, laboratories, and other support facilities at Hanford. He worked in the nuclear power industry for many years and shares his experience of being in the control room during the Three Mile Island incident.

Haskell Sheinberg’s Interview

Haskell Sheinberg arrived at Los Alamos in late 1944 as part of the Special Engineer Detachment. Sheinberg’s first assignment was to purify plutonium under the direction of Arthur Wahl, one of the co-discoverers of plutonium. Sheinberg discusses the safety procedures the laboratory had in place to protect its workers from the harmful effects of radiation and also recalls attending several of Oppenheimer’s colloquiums regarding the overall progress of the Manhattan Project. He remembers meeting his wife, who worked in the Women’s Auxiliary Corps and received a commendation from Oppenheimer for her technical work, at one of the dances at the Los Alamos recreation hall. Sheinberg had a long and storied career at the Los Alamos National Laboratory.

Oswald Greager’s Interview

Oswald Greager was a high-ranking DuPont chemist when joined the Army’s Chemical Warfare Service at the start of World War II. He was later transferred to the Manhattan Project’s Hanford site and served as the Army’s liaison at the plutonium separation areas. After the War, Greager returned to Hanford and worked for General Electric as a Technical Manager in the separation areas. In this interview, Greager discusses the production of plutonium, the separation process, and the perils of transporting radioactive material. He also discusses the race against the German for the atomic bomb as well as Hanford’s role after the war ended in 1945.