Hi. I believe St Florence's may well be the church i need to follow up with.
Also, you mentioned the curate who conducted the first marriage in Manorbier parish was Benj Gibbon. By coincidence, he was also curate in Rudbaxton in the early 1790's according to initial research, therefore, almost certainly known to Joseph if indeed Rudbaxton turns out to be Joseph's place of origin.
Thank you again for these leads and good luck with the research paper.
Julie