Claim: George Waldron seems to be the sole definitive written authority on Moddey Dhoo which he transcribes as "Mauthe Dog".
Evidence: The English topographer and poet George Waldron seems to be the sole definitive written authority of this folklore localized in the castle. Waldron transcribes the original Manx name "Moddey Dhoo" as "Mauthe Doog", and describes the dog thus: