South Shields Adelaide Reserves were champions of the Shields and District League in 1905–06 and 1906–07,[18] before joining the Tyneside League in 1908.[2] They then switched to the Wearside League in 1909.[19] They were runners-up in 1910–11, but left at the end of the 1911–12 season,[19] returning to the Tyneside League.[3] Echoing the success of the first team, they won back-to-back Tyneside League titles in both 1913–14 and 1914–15.[3] When the club was elected to the Football League, the reserve team took over from the first team in the North Eastern League, which they won in 1923–24 and finished as runners-up in 1928–29.[4]