I know people get pretty weatherbeaten in Cornwall, but calling them "cronish" is going too far.

the somewhat eccentric Parson Hawker of Morwenstowe, he traduced by Baring Gould, seems to have written most of the Trelawney poem/song, the only traditional bit being the "shall Trelawney die/ here's 20000 Cornishmen shall know the reason why".