Robert Eustace was the pen name of Eustace Robert Barton (1854–1943), an English doctor and author of mystery and crime fiction with a theme of scientific innovation. He also wrote as Eustace Robert Rawlings.
L. T. Meade was the pseudonym of Elizabeth Thomasina Meade Smith (1844–1914), a prolific writer of girls' stories. She was born in Bandon, County Cork, Ireland, daughter of Rev. R. T. Meade, of Nohoval, County Cork.