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

Lyman Briggs

Washington, DC

Lyman Briggs (1874-1963) was an American engineer, physicist and administrator.  In 1939, President Franklin Roosevelt called on Briggs to head the newly established the Uranium Committee, a secret project to investigate the atomic fission of uranium, as a result of the Einstein-Szilard Letter.

Abe Krash

Chicago, IL

Abe Krash is an American attorney. He was the editor of The Chicago Maroon, the student newspaper, at the University of Chicago during the Manhattan Project.

Mary Brennan

Santa Fe, NM

Mary Brennan lives in Santa Fe, New Mexico. She and her husband, Curtiss, moved next door to Dorothy McKibbin, the “Gatekeeper to Los Alamos.

Esther Floth

Washington, DC

Esther (Green) Floth worked as a secretary for General Leslie Groves during the Manhattan Project in Washington, DC.