Possibly the swiftest route to your roots.
Irish genealogy website directory.
www.from-ireland.net/trade-directory/Leitrim
Description:
The streets of the town all went from that square. Most towns had a 'Main street' - some called it a High street, and it was usually on that main street that the majority of shops and businesses were located. Shops had one or two large windows depending on the size of the shop.