We thank them all, but draw the reader’s special attention to the following. Of Richard Nixon’s surviving family, his brother Edward and his nephew Donald talked with us. Tricia Nixon courteously declined an interview request while Julie did not respond. From amongst Nixon’s friends, Jack Drown and Donald Kendall were interviewed. We could not see the late Bebe Rebozo, who had suffered a stroke, and Robert Abplanalp did not reply to letters. The late C. Arnholt Smith was interviewed, as were former Senator George Smathers and Adnan Khashoggi. Dr. Arnold Hutschnecker, the psychotherapist with whom Nixon had a long relationship as patient and friend, gave three extensive interviews.Of Nixon’s staff, the following granted interviews: Alexander Butterfield, Dwight Chapin, John Dean, the late John Ehrlichman, Peter Flanigan, Leonard Garment, Alexander Haig, Herb Klein, Egil Krogh, John Sears, Ron Walker, and Ronald Ziegler. So, too, did former Defense Secretaries Melvin Laird and James Schlesinger (who also served as chairman of the Atomic Energy Commission and director of the Central Intelligence Agency).