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National Museum of Nuclear Science & History

J. Samuel (“Sam”) Walker is the former historian of the U.S. Nuclear Regulatory Commission and the author of Prompt and Utter Destruction: Truman and the Use of Atomic Bombs against Japan. He is also the author of five books on the history of regulating nuclear power, including Three Mile Island: A Nuclear Crisis in Historical Perspective and The Road to Yucca Mountain: The Development of Radioactive Waste Policy in the United States.

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Alice Kimball Smith

Los Alamos, NM

Alice Kimball Smith (1907-2001) was an American historian and educator. Kimball Smith and her husband Cyril Smith, a British metallurgist, moved to Los Alamos in 1943 after Cyril joined the Manhattan Project.

Henry Howard Roerkohl

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Henry Howard Roerkohl was commissioned as a 2nd lieutenant in the QM Corps Reserve on Jan 16, 1940. On Nov 9, 1942 Howard was transferred to the Northwest Service Command (NWSC), located in Whitehorse, Canada in the Yukon Territory.

Michael Joseloff

Michael Joseloff is a four-time Emmy Award-winning TV news and documentary producer. While working as a producer for the MacNeil Lehrer Newshour in 1993, he worked on a program related to alleged Soviet espionage during the Manhattan Project.

Brehon B. Somervell

Washington, DC

Brehon Burke “Bill” Somervell (1892-1955) was a Lieutenant General in the US Army who commanded the Army Service Forces and supervised much of the Army’s involvement in the Manhattan Project.