Joseph Carroll (DIA)
When the U.S. Air Force was established as a separate executive department under the National Security Act of 1947, Secretary of the Air Force W. Stuart Symington, requested FBI Director J. Edgar Hoover to loan General Carroll to the services to organize a U.S. Air Force agency for investigative and counterintelligence functions. He organized and directed this new organization, the AFOSI, along the lines of the FBI rather than the U.S. Army's Criminal Investigation Command (USACIDC or CID). General Carroll was tendered a commission as a colonel, U.S. Air Force Reserve, January 12, 1948. He was ordered to active duty in the grade of brigadier general May 6, 1948, and promoted to major general August 11, 1950.
Gen. William Mitchell House
Mitchell had a major role in the development of American military air power during World War I, and sought to broaden the Air Service (then part of the United States Army). His views were often poorly received and controversial, and he was eventually court-martialed in 1925, and resigned from the Army the following year. His views were to some degree vindicated when the United States Air Force was established in 1947, on an equal footing with the Army and Navy.