The authors wish to acknowledge the contributions of various friends and former colleagues who enriched the pages of this book with their perspectives and recollections. Among them: Clarence "Bud" Anderson, Bob Hoover, Maj. Gen. (retired) Fred J. Ascani, Russ Schleeh, Richard Frost, Charles K. Peters, William R. O'Brien, Bill Overstreet, Robert H. Smith, Carl Bellinger, Aldene Tarter, Vi Strauss-Pistel, Margaret Ann Curlin, George Hupp, Emmett Hatch, Don Jacques Dr. Robert S. "Buck" Buchanan, and Don Emigholz. Particular thanks to Glennis Yeager for her patient insights, to Del Riebe for his friendship and support, to Ian Ballantine, the wise and resourceful father of this project, and to Betty Ballantine for her skilled editing.