10 June 1969: The U.S. Air Force donated the first North American Aviation X-15, serial number 56-6670, to the Smithsonian Institution for display at the National Air and Space Museum. The first of three X-15A hypersonic research rocketplanes built by North American for the Air Force and the National Advisory Committee (NACA, the predecessor of NASA), 56-6670 made the first glide flight and
Lieutenant General Marcus A. Anderson was the inspector general, Office of the Secretary of the Air Force, Washington, D.C. He oversaw Air Force inspection policy; criminal investigations; counterintelligence operations; the complaints and fraud, waste and abuse programs; intelligence oversight and two field operating agencies–the Air Force Inspection Agency and the Air Force Office of Special Investigations.
The general graduated from the U.S. Air Force Academy in 1961. He has held a variety of operational and staff assignments including the commander of a fighter wing in Europe, commandant of cadets at the academy, commander of a Numbered Air Force in Europe, and commander of the Air Force Operational Test and Evaluation Center. He is a command pilot with more than 4,400 flying hours, including 240 combat missions in Southeast Asia.
(source: Https://www.af.mil/About-Us/Biographies/Display/Article/107842/lieutenant-general-marcus-a-anderson/)
