Joined the Langley Memorial Aeronautical Laboratory of the National Advisory Committee for Aeronautics (NACA), which would later become the National Aeronautics and Space Administration (NASA), upon graduating college.
Selected to manage a free-flight guided missile range at Wallops Island, Virginia at the meer age of 31.
Directed Project Mercury which was responsible for the first American astronaut to orbit the earth and was accomplished only three years after NASA was created.
Named the Director of the Manned Spacecraft Center and assigned the responsibility of designing and developing spacecraft and associated equipment, planning and controlling missions, and training flight crews.
Greatly contributed to the success of the Apollo Program.
Appointed as Director of Key Personnel Development in 1972 where he identified and helped to prepare the future leaders of NASA.