Robertson County Schools--jo Byrns School 7025 Highway 41 N Cedar Hill, TN 37032 Phone : (615) 696-2251 Business Category Schools Administration Of Educational Programs Government Offices & Public Schools Jo Byrns High School 7025 Highway 41 N Cedar Hill, TN 37032 Phone : (615) 696-2251 Business Category Schools Schools High & Preparatory Schools-Elementary Schools-Junior High Schools-Public Schools-Senior High Government Offices & Public Schools