Good work, Freddy! Ancoats Lane became Great Ancoats Street, and the brewery certainly wasn't 'at the end' of it. Wilson bought the brewery in 1865, but it says here the name wasn't changed until 1884.

HB and DH's sleeve notes mention a print source but don't specify that it was a broadside. It would be instructive to dig it out in the Paul Graney archive.

At any rate, this thread encouraged me to sing the song again after a gap of about30 years, so thanks Richard for the OP!