Going left to right, here is who I think I've come up with in the pic:
Front Row: Coach Mitch Lee, Petey Salaiz, Sr. (Mullin)
2nd Row: Nathan Hays, Jr. (Blackwell), ? (Paint Creek), John Estes, Jr. (Abilene Christian), Charlie Smith, Sr. (Mullin)
3rd Row: ? (Guthrie?), Jim Kostiha, Jr...