Within this 19th century Gothic Revival structure is the Denny family bible, dating back to the time of Sir Edward Denny in 1639. Perhaps THE outstanding feature in St. John’s is the 1861 “Great Sanctuary (stainedglass ) Window.” Created by Michael O’Connor, it is ranked amongst the finest of its example in Western Europe. In the lower portion of the window, its 14 panels depict Christ, John the Baptist, and the twelve apostles. A unique feature of this portion of the window is that all the apostles are named and given an identifying symbol, unique to each one ( presumably so the illiterate of the time could recognize them).
Following a ten year renovation project, the church took on its present configuration in 1960. It is a dominant landmark within the town, with its steeple being visible from most neighborhoods.