Thornham Church was started in Norman times, but building came to an abrupt stop in 1348 with the scourge of the Black Death.(It is thought that the spinney named Plug Pits in Granary Road, Thornham is the former burial ground called Plague Pits.)The Church, like so many, was added to through the centuries and much restoration took place. By the middle of the nineteenth century, however, the church had become extremely dilapidated. Major works of restoration continued for 50 years in that century. The bell was re-hung in the tower, the chancel was completely rebuilt and the roof of the nave was restored.