Ellison 20, is a left-sided defender who made 29 appearances for the Mariners last season after joining the club in summer 2019.
He joined Tranmere Rovers as a 15-year-old, after playing junior football in Liverpool, and progressed to their Under-18s side after being awarded a two-year scholarship, but was released by the League Two club at the end of the 2017-18 season.
Stalybridge have also confirmed that Anthony Williams has joined Colne on loan until January 3, 2021.
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