Doctor John Harrison Memorial Hall

Detached three-bay single-cell gable-fronted former Presbyterian church with extension to rear, built in 1863, now in use as a museum. Pitched slate roof with rendered chimneystack and cast-iron rainwater goods. Ashlar front elevation with open bed pediment supported by quoin pilasters with channelled rustication. Roughcast-rendered side walls. Round-headed window openings with stone sills and timber paned windows. Chamfered cut stone openings to windows and door of front elevations. 'Star of David' window set in raised oculus above front door. Timber panelled double door. Building is set back from road with lawns to front, behind cast-iron gates with chamfered cut stone piers and cast-iron railings surmounting cut stone plinth.

This former Presbyterian church, whose construction was funded by a Michael Sherra, is one of a number of buildings of high architectural quality, set around the square. The charming edifice and adjacent manse form a striking group, which displays highly-skilled stonework. The 'Star of David' window, which represents The Trinity, is particularly notable, while the cast-iron railings and gates complete the setting of this architecturally-significant building.