Richard Trevithick
O Uicipeid
B' e innleadair agus Còrnach a bha ann an Risteard Trevithick. B' esan a' chiad innleadair a thogail innealan deathaich iomainichte le deathach fo bhruthadh susbainteach (mu deidhinn 3 aillean) agus as aonais dluthadair.
