The President of the United States of America, authorized by Act of Congress, 20 July 1942, takes pleasure in presenting a Bronze Oak Leaf Cluster in lieu of a Second Award of the Legion of Merit to Colonel William Douglas Dunham (ASN: 0-432289), United States Air Force, for exceptionally meritorious conduct in the performance of outstanding services to the Government of the United States as Chief of Operations for the 81st Tactical Fighter Wing from 1 July 1958 to 1 April 1961. Colonel Dunham advanced the theory that the F-101A/C aircraft was capable of assuming an All-Weather Mission. Through his creative thinking and tireless personal effort Colonel Dunham overcame tremendous technical and psychological obstacles to prove and develop his theory. Through his direct efforts the 81st Tactical Fighter Wing mission has been changed to include an all-weather capability. In making this important mission change possible, Colonel Dunham has performed an invaluable service resulting in a highly increased combat effectiveness of these tactical forces, and in so doing has reflected great credit upon himself and the United States Air Force.