Postscript - a recently published book, The Swoose, Odyssey of a B-17 by Herbert S. Brownstein has revealed that the plane that would later be named Swoose was not at Clark Field when the Philippines were first attacked. It and two other B-17s were 574 miles away on Del Monte Field, on the Philippine island of Mindanao. The book is interesting reading (Smithsonian Press, 1993, ISBN 1-56098-196-2).