^From this season the club was renamed South Wales Switchgear and used this name until the end of the 1969–70 season when it reverted to Pontllanfraith.
^From the 1964–65 season Division 1 was renamed 'Premier Division', Division 2 East and West were replaced by 'Division One' and 'Division Two' (effectively Division Two and Division Three).
^In this season The Premier Division (Division 1) was renamed 'National Division'. The 2nd tier division was renamed 'Premier Division' with the 3rd tier division named 'Division 1'.
^In this season, The 2nd tier division was renamed 'Division One' with the 3rd tier division renamed 'Division Two'.