A. J. Alan was the pseudonym of Leslie Harrison Lambert (1883-1941), an English magician, intelligence officer, short story writer, and radio broadcaster. He was hugely popular in the '20s and '30s for his radio broadcasts, when he performed his own humorous and often macabre short stories, which he always delivered wearing full evening dress.
My Adventure on Dartmoor is typical of A. J. Alan's amusing narratives, describing an eventful night in a remote cottage in the wilds of Dartmoor when he has to wrestle with an unruly cow and a stray actress, whom he inadvertently gets drunk on some very fine old brandy.