Plausible? There is a John Palmer on FMP, buried in Musbury which is about 5 miles from Lyme Regis. There's an image as well. I hope someone else will take a look if they can. I'm too cross-eyed and heading for bed. I'll try to check back tomorrow if you still need something.
Devon Burials Image - FMP
First name(s) John
Last name Palmer
Age -
Birth year -
Death year 1798
Burial year 1798
Burial date 04 May 1798
Burial place Musbury
Denomination Anglican
County Devon
Country England
Archive reference 2718A/PR/1/2
Archive South West Heritage Trust
Record set Devon Burials
Category Birth, Marriage, Death & Parish Records
Subcategory Parish Burials
Collections from England, Great Britain