These men and women who participated in the events of this book generously made time for interviews and correspondence: Philip Abelson, Luis W. Alvarez, David L. Anderson, William A. Arnold, Hans Bethe, Rose Bethe, Eugene T. Booth, Sakae Itoh, Shigetoshi Iwamatsu, George Kistiakowsky, Willis E. Lamb, Jr., Leon Love, Alfred O. C. Nier, I. I. Rabi, Stefan Rozental, Glenn Seaborg, Emilio Segrè, Edward Teller, Stanislaw Ulam, Eugene Wigner and Herbert York.
