Margaret Gabrielle Vere Long, who used the pseudonyms Marjorie Bowen, George R. Preedy, Joseph Shearing, Robert Paye, John Winch, and Margaret Campbell or Mrs. Vere Campbell, was a British author who wrote historical romances and supernatural horror stories, as well as works of popular history and biography.

Charles Delauney Bravo was a British lawyer who was fatally poisoned with antimony in 1876. The case is still sensational, notorious and unresolved. The case is also known as The Charles Bravo Murder and the Murder at the Priory.