Here's a nice early-ish mention from 1767 of London porter being available in Kilkenny - hardly a shock but nice to see it in print. The Bartholomew Rivers mentioned here was a wealthy merchant who is perhaps best known for helping to transform Tramore just outside Waterford city into a seaside resort. In this advert from Finn's Leinster Journal (printed in Kilkenny) he says that he has 'fitted up a warehouse in the city [Kilkenny] to hold porter' and just porter by the sounds of it, which shows its popularity in the city. It ties in with a couple of my previous porter related posts here and here too.
What is also of some interest is the specific mention of hops in the advert in relation to his Waterford warehouse, a hardly surprising sign of how important hops were to the brewing trade, as they are mentioned here before tea and sugar. Perhaps Mr. Rivers was one of the bigger importers of them...
(With thanks as ever to the local studies room in my local library.)