 The gallery above the altar contained the organ, and there was a tall, highly decorated pulpit.The alterations of 1876–1877 removed the gallery above the altar and added a chancel, separated from the nave by an iron rood screen, new pulpit and lectern.The rebuilding of the exterior in 1882–1883 (south elevation) and 1896 (east elevation), prompted by the demolition of buildings adjacent to the south side of the chapel to allow North Street to be widened, involved replacing the stucco with red brick, enlarging the pediment and giving the new south elevation a similar appearance.