Besides commercial flights, his career included the tasks of weather observation, crop dusting, air racing, and lookouts for forest fires.
He was operations manager of the United States Army Air Corps training program at Cheyenne, Laramie, and Fort Morgan in northeastern Colorado.
[1] Johnson was certified by the former Civil Aeronautics Authority to conduct flight training at the University of Wyoming in Laramie and at Lambert Field in St. Louis, Missouri.
Pilots entering the Korean War were trained at a time when planes were switched from piston engines to jet aircraft.
[2] In 1960, Johnson returned to Cheyenne to become the safety and enforcement officer of the Wyoming Aeronautics Commission, the same body that more than a half-century later approved his nomination to the Hall of Fame.