In the short story The Adventure of the Dartmoor Bungalow (later, chapters 3 and 4 of The Big Four), Moretonhampstead is a market town in Devon. It is located about nine miles from the village of Hoppator. Interestingly, the road distance from Moretonhampstead to Throwleigh is 14 km (about 9 miles). Throwleigh is a town with significant Agatha Christie connections and she might have used it as an inspiration for Hoppator.
Inspector Meadows is a member of the Moretonhampstead police.