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

Dostaf, You're right, I had a look tonight(footnote 1) and the only sign I could see was Clarence Yard.
I'm sure though, I haven't dreamed 'Backwallgate'.
Someone suggested it could be the cobblestone alley down the left side of Wallgate Station , but its not that in my mind's eye... I can see the damn sign there!
A long blocked off passage that I used to think of as 'bank chambers' running from just below the GPO towards the Prince's, maybe?
I don't think it was on the other side.
Annoying the life out of me!

Footnote 1. I was having a pint in the town centre. I didn't go especially, I do have a real life.