Junior Rugby League in the North Sydney District commenced in 1909 and was known as the Northern Suburbs District Junior Rugby Football League. The name was changed in 1947 to the North Sydney District Junior Rugby Football League.
Trove has made it far easier to establish the facts. Apart from organised competitions, RU teams would arrange one off games in the new code, but in 1908 and 1909 there were only 2 junior leagues - South Sydney and Balmain. I think that the competition table in South Sydney in 1908 was as follows:
Waterloo Oaks 12, South Sydney carltons 10, Waterloo Centennials 2, Alexandria Buccaneers 2.
The Balmain comp was won by Balmain Iona. Other teams were Leichhardt Royals, Drummoyne, Birchgrove, Rosebuds and Norwood. Before too long Iona, Royals and Drummoyne were having stints in the NSWRL 3rd grade comp with Royals winning that competition.
The number of teams in Balmain had fallen away by 1910 and with RU teams having switched over to league on the north side, the Balmain-Northern Districts competition existed for one season and the tables were:
A grade - Neutral Bay 16, All Blacks 11, Rozelle Waratahs 11, Elliott Bros 8, Berrys Bay 2, Crows Nest 2.
B grade - Balmain Iona 18, Berrys Bay 12, Rozelle Rangers 4, Crows Nest 2.
The Eastern Suburbs and Western Suburbs Junior Leagues were also established in 1910 with the tables as follows:
Western Suburbs - Parramatta Iona 16, Parramatta District 14, Campsie Triers 11, Granville Royals 11, Enfield Mercantile 9, Ashfield Surreyville 7, Auburn Park 2
Eastern Suburbs
A Grade - Darlinghurst 14, Paddington Waratah 14, Double Bay 8, Sydney Jnrs 6, Waverley Waratah 2
B Grade - Paddington Waratah 16, Royal Iona 14, Gipps Jnrs 10, Royal Surry 8, Sydney Jnrs 6
In 1911 the Northern Suburbs JL was established
A Grade - Berrys Bay 18, NS Feds 16, Willoughby 12, Neutral Bay 10, Mosman 4
B Grade - Crows Nest 17, Berrys Bay 15, Willoughby 4, Blues Pt Waratah 0
1911 also saw the St George comp started and the Western Districts split out Western Suburbs.
For 1911 only the Balmain comp was known as Balmain-Leichhardt JL,
The Newtown teams playing in the Western suburbs comp in 1911 & 1912 formed their JL in 1913 and the Glebe teams in 1914.
1919 saw Southern Districts split from western districts in 1919.
1920 was the only season of the Annandale JL, and also saw the formation of the a second feeder district to North Sydney when the Northern Districts JL was established but in 1923 the clubs were redistributed between North Sydney and Balmain, while the Leichhardt clubs that had previously played in Wests, Annandale and Balmain were now shifted into Glebe.
The Canterbury teams split out of St George to form their own league in 1922.
The last season of the Glebe JL was 1926 but they continued in the Presidents Cup for another 3 years with clubs playing in Wests & Newtown.
The last season for Southern Districts was 1936 with remaining teams split between western suburbs and Western Districts.
Other competitions were Tramways (1910-1951)
Catholic Sporting Association 1915- 1929) & 1938-80's
Metropolitan JL (1930-19410
City Houses (1919 to late 1990's)
also Druids, Rechabites, Surf Clubs, RSL Clubs, Protestant Churches (took over the Esatern Suburbs JL for 1926-27).
