It is indeed a pleasure to thank the many people who helped me in various
ways during preparation of this book. First of all, to each of the many eye
witnesses of these events goes my gratitude and respect for their courage
to report their experiences in the first place, particularly to Mr. Francis
P. Wall. It will partially be through such brave acts that we will, one
day, discover the core identity of the so-called UFO phenomenon. In
addition, the following persons deserve my sincere thanks.
To the Archives Division of the Smithsonian Institution's National Air and
Space Museum for permission to reproduce selected photographs of combat
aircraft. To John P. Timmerman Vice President of Public Relations for the J.
Hynek Center for UFO Studies for obtaining part of the interview material in
Chapter Two. To Loren Gross for his able assistance in locating some US AF
Project Blue Book reports as well as old newspaper clippings. To David L.
Black, Director of Public Affairs, Defense Mapping Agency for helpful
advice on how to obtain charts from the Korean War period. To Lt. Col.
Clayton R. Newell, Chief Historical Systems Division, Department of the
Army. To the Chief of Military History at the Center of Military
History who provided valuable suggestions on
how to obtain further wartime data. To John R. Gerfen, Chief, Army
Reference Branch, National
Center for copies of
wartime unit personnel rosters. Finally, I am grateful to my wife Carol for
her expert editorial assistance which made this text far more readable than
it otherwise would have been.