Surgeon General of the United States Air Force
In September 1947 the combat elements of the Army Air Forces separated from the U.S. Army, forming the United States Air Force. But a few Air Force support functions, such as medical care, remained U.S. Army responsibilities for the next two years. Starting in 1948, the Air Force and the Air Surgeon, Maj. Gen. Malcolm C. Grow (1887-1960), began to convince the U.S. Army and the administration of President Harry S. Truman that the Air Force needed its own medical service. In the summer of 1949, Air Force General Order No. 35 established a medical service with the following officer personnel components: Medical Corps, Dental Corps, Veterinary Corps, Medical Service Corps, Air Force Nurse Corps, and Women’s Medical Specialist Corps.
Air National Guard
Being "local" ground forces affiliated with the Army, militias were considered state-centric/territorial-centric in nature, this versus naval forces, which were considered wholly activities of the federal government. This distinction accounts for why there are no National Guard components in the U.S. Navy, U.S. Marine Corps or U.S. Coast Guard. Because the present day U.S. Air Force evolved from the U.S. Army, it was only natural that a separate Air National Guard would be established with the divestiture of the former U.S. Army Air Forces and its establishment as a separate and independent U.S. Air Force in 1947.