Question: Sam "Sammy" Jack Claphan (born October 10, 1956) attended high school at Stilwell High School in Stilwell, Oklahoma, he was recruited by Head Coach Barry Layne Switzer, a former American football player and coach, born on which date?
Sentence (from "Barry Switzer"): He served for 16 years as head football coach at the University of Oklahoma and four years as head coach for the Dallas Cowboys of the National Football League (NFL).
Relevant evidence: No