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 and, in additional to baseball, is the Clark freshman head football coach. He and his wife Adrienne live in Melissa and have two sons, Billy (8) and Mackenzie (17 months).