On the term.."wool"..I always thought it was short for wooliback and was generally a derogatory term used to describe Welsh people. Then it was widened to include anybody, who wasn't a LFC fan, from outside the City.
People from Liverpool being called scousers come from the local dish, basically a lamb hotpot.
The other orientation of the word scouser is said to have come from London dockers, would you believe. As the ships approached the Liverpool docks, in particular, the Albert Dock, which had very high waterfront buildings (still the same skyline today)....the London seafarers would say..."comin' in to the sky'ouses now.." meant as the made up word Skyhouses...and over the years that was derived into the word "scousers".
So the term derived from "Skyhouses"....to "Scousers".....that's that one cleared up then...!