A Pixy in Petticoats by John Trevena

Towards evening Burrough had the vision again. In the interval he had made inquiries. Her name was Beatrice Pentreath; her home was in Cornwall; and she lived with a maiden aunt of uncertain age. They came upon Dartmoor every summer. The woman who cleaned Burrough's cottage had a poor opinion of the young lady, because it was her custom to ride astride like a man, she was shamelessly plainspoken, and had a disgusting habit of using tobacco in the form of cigarettes.

"And she's been seen on the moor, naked -- naked, sir," went on the matron in a tragic manner.