The Johnson Ranch airfield was the first permanent installation by the Air Corps in the lower Big Bend. It was distinct from other airfields in the area in that it was neither an auxiliary nor emergency field. It was established solely due to its strategic location, where combat troops and aircraft could be deployed in case of a border emergency. It was also unique in that the ranch house became the airfield headquarters, and Elmo Johnson—with neither rank or authority—provided a quaint civilian dominance over the field's operations.
The closure of the Johnson's Ranch airfield ended an era of military aviation. The era of the members of the “order of the white scarf”—those who built America’s aerial armada, trained the pilots, and led them to victory in World War II—was forever past. The jet age Air Force that followed bore scant resemblance to the Army Air Corps that established Johnson's Ranch.
photo and info from http://www.nps.gov/bibe/historyculture/johnsonsranch.htm
the airplane is a DeHaviland, and was the first to land at the Johnson's