In the St Catherine Chapel there are two notable medieval tomb recesses in the south wall which are typical of the Decorated Period (c.1250-1350). One of the recesses contains an early tomb slab carved with a floriated cross. When this chapel served as a vestry and organ loft in the late 19th century a doorway was cut through the more westerly recess, which has since been blocked up and the stonework restored.
Above these tomb recesses are two fine examples of Victorian stained glass.

The window closest to the altar depicts St Christopher, the Christ-bearer. It is signed by T.F. Curtis, of the Victorian glass firm Curtis, Ward & Hughes.

The next window along, by Heaton, Butler & Bayne, shows St Francis of Assisi, and was donated by the Sunday School teachers and children in 1901.