I've spent a bit of time sorting out the Robert Westlakes of which there are two, father & son.

The older Robert Westlake I have recorded as abt 1739 but there is no record of a baptism for him in the Somerset Parish Entries - nor can I find Sarah Meare, as the records were only for Puriton and they were married in Moorlinch St Mary.
(Not sure if Moorlinch is the town or St Mary is - I assume Moorlinch is the town and St Mary is the church?)

I apologise for all the previous repetitions as the two Robert Westlakes were very confusing.