I would really appreciate some help with this marriage if anyone can help me. I have searched for years for the marriage of a John Westcott (father Jasper, mother Elizabeth Spear) who was born in Dawlish in 1816. He was married to Elizabeth

?? who was born in Milverton around 1823.
The marriage is shown on the FamilySearch I.G.I. records as being in Milverton in 1841 but I cannot seem to find it and have no idea of Elizabeth's maiden name. So of course I can't trace the tree any further back.
I did find some marriages transcriptions for St Michael's church in Milverton on line but the couple were not shown on these pages.
If anyone can help it would be brilliant! Thanks.