Catholic Church, York Sunday - Mass 10,30 am and 6.30 pm, Tuesday to Saturday - Morning Prayer 9,15am, Mass 9.30am (subject to change so please check the weekly timetable on line). Saturday - Exposition and confessions 10 am till 11am. A Word Of Welcome During Penal times the Catholics of York had to worship secretly in private houses and even on occasion, breaking into the castle to attend mass celebrated by the priests in prison there. During the 18th Century. mass was celebrated in the Shakespeare Tavern in Little Blake Street as well as in the Bar Convent but in 1802. St Wilfrid's Chapel was built to serve the York congregation. This soon proved inadequate and an impressive new church was env caged. however, the influx of Irish immigrants into Walmgate made it necessary to build St George's church. It was designed by Charles & Joseph Hansom in Early Decorated style at a cost c4£3.550.