The Manhattan Project

In partnership with the National Museum of Nuclear Science & HistoryNational Museum of Nuclear Science & History

Manhattan, NY

John Manley

John Manley was an American physicist and a member of the Calculations Group (group T-5) at Los Alamos during the Manhattan Project.

Manley was a research associate in the Metallurgical Laboratory at the University of Chicago in 1942 when he was recruited for the Project. He was among the first group of scientists that arrived on the Hill in April 1943 and helped with construction of laboratory buildings and the installation of a Cockcroft-Walton Generator, which he brought with him from the University of Illinois.

Percival Keith's Interview

Stephane Groueff: Interview with Mr. P. C. Keith, K-E-I-T-H, former head of Kellex Company during the war.

Percival Keith: So I decided I would accept the job of trying to build this plant at Oak Ridge. Groves came up from Washington, and he and I went out to dinner. It was a French restaurant, Miriliton.

Groueff: What was the name?

Percival "Dobie" Keith

Percival Keith was the head of the Kellex Corporation. In his interview, he discusses the recruitment of top scientists and engineers, including George Watts, Manson Benedict, and Ludwig Skog. He was tasked with constructing the gaseous diffusion plant for uranium isotope separation. Keith focuses on the decision to abandon the flat barrier design for the tube model, and how doing so was instrumental in finishing the project.

General Leslie Groves

Lieutenant General Leslie Groves (1896-1970) was a United States Army Corps of Engineers officer and director of the Manhattan Project. In September 1942, Groves was appointed to head the Manhattan Project with the rank of Temporary Brigadier General.

Celia Szapka Klemski's Interview

Cindy Kelly: Start, my name is Cindy Kelly of the Atomic Heritage Foundation and it is Tuesday August 13, 2013 and with me I have Denise Kiernan. Denise would you like to say and spell your name.

Denise Kiernan: Denise Kiernan, D-E-N-I-S-E K-I-E-R-N-A-N and I am here with Cindy Kelly and Celia Klemski.

Kelly: Okay, so Cecelia—we have called you Cecelia—can you please tell us your full name and spell it?

Celia Szapka Klemski

Celia Szapka Klemski was featured in Denise Kiernan’s “The Girls of Atomic City.” She grew up in a small coal-mining town in Pennsylvania. She worked as a secretary in Washington, DC, before she was transferred to New York City to work on the Manhattan Project. There she enjoyed sightseeing and touring the skyscrapers. Eventually she was transferred to Oak Ridge, where she settled down and married another Manhattan Project worker.

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