For many Americans Fess Parker, with his lanky frame, humble demeanor, and ruggedly boyish face, is the personification of the pioneer myths. Million would swear up and down that in real life Davy Crockett and Daniel Boone--Parker's most famous roles--looked just like the TV hero of the 1950s and 60s.Parker broke into theatre after service in the Navy and by 1951 was in the national company of "Mr. Roberts" which brought him to Hollywood. He was immediately cast in films with a Western or pioneer theme. His first effort, "Untamed Frontier" (1952), was about a range war in Texas, but Parker did