Hi Claire, the information you found has been very helpful, I think I have tracked Philip Pike back further, there’s a baptism record for him on June 19th 1739 in Churston Ferrers, parents John Pike and Anne. Anne is likely to be Anne Laverence, and I’ve also tracked her further back through several generations to a Richard Laverence, born 1559. Can’t be absolutely certain, but am trying to find more records to confirm or rule out. As it’s an unusual surname (French, possibly?) I’m hoping I’ve got the right family.
The witness on the marriage record for Philip Pike and Mary Winston Pearse could thus be John Laverence rather than Laurence, I’ve noticed that the name is often mistranscribed thus.
Philip and Mary also had several more children, although not one named Philip as far as I can find, which is unusual, being the father’s name.
Just putting this here in case anyone else is researching this family. Many thanks again for your help!