John Maguire & Co - draper   *   D. Donnelly & Sons - butcher   *   unclear   *   T. Johnston & Co - merchant   *   Bryne? - Family Grocer (thatched)
   *   D. McCabe?
The Church is St Macartin's Cathedral and the same photograph on their site is dated 1890 (thanks to Ian for this information)
it says on the photograph Main Street but most of these businesses show in the 1880 Street Directory as High Street