Complex sentence: Jones was first pilot to establish commercial air service in Alaska, landing in Ketchikan on July 18,1922, and stayed in the area, deciding in 1923 to form an airline, which he named Northbird Aviation.
Split into simpler sentences: Jones was first pilot to establish commercial air service in Alaska. He first landed in Ketchikan on July 18,1922, and stayed in the area, deciding in 1923 to form an airline, which he named Northbird Aviation.