Coach Firth is from Allen, Texas where he played football and baseball for Allen High School. He is a graduate from Middle Tennessee State University, graduating Summa Cum Laude with a degree in history. Coach Firth is on staff at Clark High School, where he teaches World Geography.  Coach Firth coaches with the Plano Senior High varsity footbll program, and is responsible for the baseball program here at Clark.  He and his wife Adrienne live in Melissa and have two sons, Billy (9) and Mackenzie (2).