An unrelated change between the 2019 and 2020 seasons was the merger of the Moss Vale Dragons and Bowral Blues, forming a new club Highlands Storm.

[8] At the northern end of the region Camden, Campbelltown, Picton left the SDRL and with Bargo and Thirlmere formed the Wollondilly association.

Names of the cups included Sommers, Citizens, Cornwall, Commercial, Dawson-Lack, Dawson-Frazer, Theo Small and Murphy.

Competition in a round-robin format resumed in 1935, with Group 6 clubs organised in northern and southern divisions and a handicap system applied.

However, in one of the Group's biggest ever boilovers, the John Cole inspired Mittagong Lions rolled the black 'n whites, denying Picton a certain back-to-back Clayton Cup.

Captain- coached by former St George Dragons hooker Ray Corkery, the Kangaroos would win three successive Group 6 premierships- defeating Oakdale Workers in 1970 and the RSL Warriors in 1971.

Captain- coached by the mercurial Les Williams, the Tigers had a week earlier thwarted City's attempts to become the first Group 6 club to win 4 consecutive premierships.

Spurred into action by their first ever wooden spoon in 1979 (the first time they had missed the semi-finals since 1963), Campbelltown City sought revenge for the 1980 premiership, indulging in a recruitment drive that brought former Australian schoolboy representative Paul Murray to the club as captain-coach and Bulldogs legend and hardman Phil Charlton to the club to beef up the front row.

Picton were led to victory by the dominance of captain Ron Kain & hooker John White in the scrum, starving the brilliant City backline of possession.

A very exciting and tough team, the Dragons were brilliantly led by captain- coach Brian Milthorpe and boasted quality 1st Graders like Mark Knight, Chris Cumming, Owen Saunders, John Burke, Terry Loader and Shane Green.

Finishing the regular season second to the Clayton Cup bound Moss Vale, the 'Roos led by Tim Sheens lowered the Dragons colours 15–2 in dramatic circumstances at Loseby Park, Bowral in the major semi final of that year.

With their youthful combination now hitting the peak of its powers, the red and whites destroyed Picton 42–8 in the 1985 Major Semi-final and started at Black Caviar odds to secure the Premiership in a canter.

Captain- coached by former NSWRL 1st Grader Rod Henniker, Picton caused one of the Group's biggest upsets, turning the tables 16–8 in the 1985 decider at Kirkham Park, Camden.

Group 6 clubs at this time were Moss Vale Dragons, Camden Rams, The Oaks Tigers, Oakdale Workers, Thirlmere Roosters, Picton Magpies, Bowral Blues, Narellan Jets, Mittagong Lions.

The Magpies certainly didn't let that affect their ambitions, going better and appointing former 1977 and 1979 St George Dragons premiership winner and front row hardman, Robert Stone to steer their club's fortunes.

Warragamba wouldn't have to wait long for top grade success, claiming the 1989 Grand Final with a 22–12 victory over Oakdale Workers.

The Lions had to overcome some nervous moments in the Grand Final of that season against a valiant Oakdale Workers team seeking its club's inaugural title.

The Warriors would come close to the senior treble that 1994 GF day, winning the U/18s and Reserve Grade against Camden, before the Rams claimed the one that mattered with a 26–4 rout of Appin.

A major act of vandalism that night though by Warriors players against the very shops that sponsored them would eventually cost them their club, as they petered out at the end of the 1997 season.

Based around a brutal forward pack that contained ex-Sydney 1st Graders Marty Quinn and Paul Fuz, the Tigers left all in their wake in a dominant season.

2008: Coached by Jamie Horner, Thirlmere Roosters would claim the last Group 6 competition under the old format with a thrilling 19–16 victory over Oakdale Workers at Community Oval, Moss Vale.

While the competition had its detractors, local and State League administrators viewed the reunification as a vital bulwark against the impending threat from the AFL as it seeks to establish a second team supported by Western Sydney.

Moss Vale Dragons secured the 2010 1st Grade premiership with a nail-biting 6–2 defeat of defending premiers Picton Magpies at Campbelltown Stadium.

In a major boilover, Oakdale Workers would claim their second first grade title with a heart-stopping 24–16 victory over the heavily fancied East Campbelltown Eagles team at Kirkham Park.

2012 saw the East Campbelltown Eagles take that one step further from only suffering two losses in the 2011 season, one of those losses was the 2011 Grand Final against Oakdale, the Eagles blitzed the competition going through undefeated and winning the 2012 Grand Final defeating Thirlmere 44–10, The club also claimed the CRL Claytons Cup which hadn't been won by a Group 6 Club since Mittagong had won the cup in 1991.

The Picton Magpies RLFC would assert their dominance over the competition coming from nowhere in 2013 to beat Minor Premiers Mittagong in a thrilling Grand Final at Kirkham Park.

Mittagong will forever live with the heartache and a rue a late missed conversion from adjacent to the uprights which would’ve sent the game into extra time.

Picton would then defend their title in 2014 on home soil at Victoria Park in a grand final rematch with Mittagong, this time easily accounting for the Lions.

The Roosters would hold the trophy at the end of the day winning an amazing shootout 38-36 on the back of their captain coach Jake Mullaney.

* Oakdale Workers RLFC do not field a junior division due to their close proximity to The Oaks Tigers JRLFC.