Nuclear Museum Logo
Nuclear Museum Logo

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.

Related Profiles

Eugene Reybold

Washington, DC

Eugene Reybold (1884-1961) was a Lieutenant General and Chief of Engineers in the US Army. He was involved in the early stages of the Manhattan Project.

Geoffrey F. Chew

Los Alamos, NM

Geoffrey Chew was an American physicist. Born and raised in Washington, DC, Chew graduated from high school at the age of 16.

Roger Robb

Washington, DC

Roger Robb (1907-1985) was an American attorney. An ardent conservative, Robb was a courtroom veteran as both a U.

Ray Smith

Trinity Site

Ray Smith is the historian at the Y-12 National Security Complex. His specific focus is the history of Oak Ridge, and he is intimately acquainted with the uranium enrichment processes undertaken at the Y-12, K-25, and S-50 plants during the Manhattan Project, and how the Fat Man and Little Boy bombs worked.