According to Patton, there was some “scattered development” on the site by 1819. The Belfast Directory 1831-1832 carries details of people living in Gloucester Street. Clerkin in his book on Dublin street names believes Gloucester Street South was called after Prince William Henry, Duke of Gloucester and Edinburgh, (25 November 1743 – 25 August 1805) who was a grandson of King George II and a younger brother of King George III.