History of Wigan   (Help with ancient and recent history.)

Does anyone have any positive info here?
Long ago when I was a youngster my dad (who originally lived just off the bottom end of Wigan Lane) told me of a pub at the bottom end of Coppull Lane (behind the Swinley Labour Club). I can't remember the name of the pub but 'Green Man' comes to mind... but I might be mistaking it with something else. He also mentioned houses or cottages down there. I have looked at old maps and they indicate a mill near the Douglas and some properties. I never saw any as a kid - they must have been demolished many years previous. In my 20s I checked the site with a metal detector but only found more recent bits of metal - usually ring pulls or 'silver' foil!
I would appreciate any opinions on this (perhaps one for Tonker?)