According to Dean in his book on gate lodges Glenside Lodge was built around 1860. He argues from the heraldry on the building that the lodge was built by the Emerson family of the Glenbank and Ballysillan Flax Spinning Mills. The 1868 Belfast Street Directory lists John Emerson as the proprietor and manager of Ballysillan Spinning Mills. The Belfast And Province Of Ulster Directory 1899 lists Glenside Lodge and Glenside House. It is likely Glenside Park takes its name after these. Resolved-_That the name Glenside Park be approved for a new street off Crumlin Road on the property of Mr. F. A. Boyd. (13th December 1938)