In 1885 the Colwyn Bay Methodist Circuit consisted of societies at Colwyn Bay, Conwy and Llanrwst. The circuit developed as followed:
1888 St John's Chapel, Colwyn Bay, opened
1899 Greenfield Road Chapel used by English Wesleyans
1904 Old Colwyn Society founded
1905 Nant-y-Glyn Road Chapel opened to supercede Greenfield Road Chapel
1909 Old Colwyn Chapel opened
1916 Llanrwst left circuit
1916 Rhos-on-Sea Society founded
1923 Rhos-on-Sea Chapel opened
1932 Circuit combined with Llandudno Circuit (St John's and St David's) to form Colwyn Bay and Llandudno Circuit
1943 Abergele Society founded
This collection was originally in 2 parts CD26 and CD27 but when a later accession came to be added the material was so intertwined it was decided to amalgamate the collections.