Thanks for that Donna. I had seen that on familysearch and it does seem feasible, especially as I'm not aware of any other Richard around at this time. However, all the entries for this name & date are member submissions, one with a wrongly assumed spouse, so I'd hoped to find a more reliable source.
Besides, there doesn't seem to be a burial for his wife Jane, who survived him, either - the only burial I can find for a Jane Corjeage after 1795 is in 1834, and I believe that to be of a child.