J. Samuel Walker

HistorianWashington, DC

Expert

Listen to J. Samuel Walker’s Oral History on Voices of the Manhattan Project

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

Hyman G. Rickover

Washington, DC

Hyman George Rickover was a Navy admiral who served during World War II who is known as the “Father of the Nuclear Navy” due to his role in developing the first nuclear-powered submarine.

John C. Healey

Washington, DC

John “Jack” Carleton Healey, a colonel in the U.S. Air Force, participated in the Manhattan Project as part of General Groves’ staff in Washington, DC.

Franklin D. Roosevelt

Washington, DC

Franklin Delano Roosevelt (1882 – 1945) was the 32nd President of the United States of America. Under Roosevelt’s tenure as President, the Manhattan Project was set into motion.

Curtiss Brennan

Santa Fe, NM

Curtiss Brennan is an American archaeologist who received his PhD in 1978. In the 1970s, he and his wife, Mary, moved next door to Dorothy McKibbin, striking up a friendship with her and eventually becoming the owners of her home when she passed away.