In science fiction
In Eric Frank Russell's 1939 science fiction novel Sinister Barrier, Bathurst is mentioned as an earlier victim of Vitons, telepathic invisible creatures ruling mankind.
In H. Beam Piper's 1948 science fiction short story "He Walked Around the Horses", Bathurst slips into a parallel universe which diverged from ours in 1777.
The short story "A Toy for Juliette" by Robert Bloch mentions Bathurst as being transported into the distant future where he serves to satisfy the cruel pleasures of the story's main character, Juliette.
The short novel "Time Echo" by Lionel Roberts (a pseudonym of Lionel Fanthorpe) has Bathurst accidentally transported to a future time where his hatred of Napoleon makes him join with conspirators seeking to overthrow a cruel future conqueror and tyrant.
Avram Davidson's novel Masters of the Maze has Bathurst as one of a select group of humans (and other sentient beings) who had penetrated to the center of a mysterious "Maze" traversing all of space and time. There he dwells in eternal repose, in company with the Biblical Enoch, the Chinese King Wen and Lao Tze, the Greek Apollonius of Tyana, and various other sages of the past and future, some of them Martians.
In A. Bertram Chandler's Into the Alternate Universe, the protagonists' spaceship accidentally falls into "a crack between the universes", a vacuum without any matter except people (and other beings) who had fallen there earlier, and who (unless in a spaceship) suffocated instantly. Among others, they see the forever floating body of a man in 19th-century upper-class clothing, who seems to be Bathurst.
Bathurst's disappearance is also mentioned in passing in Robert A. Heinlein's novella Elsewhen, Murray Leinster's short novel The Other World, Poul Anderson's novel Operation Chaos, Michael F. Flynn's The Forest of Time, Joel Rosenberg's Guardians of the Flame Series and Keepers of the Hidden Ways Series, Simon Hawke's TimeWars series, Jane Jensen's novel Dante's Equation, Jack L. Chalker's Changewinds Trilogy, and early in the 7 November chapter of Anthony Boucher's 1942 "detective novel" Rocket to the Morgue.
In Kim Newman's short story "The Gypsies in the Wood", it is mentioned that the Diogenes Club investigated his disappearance.
In The Lurker at the Threshold (1945), a short horror novel by August Derleth and H. P. Lovecraft, the disappearance of Bathurst and others, is mentioned in passing, along with Fortean phenomena, near the end.
In Harlan Ellison's 1992 short story "The Man Who Rowed Christopher Columbus Ashore", the protagonist Levendis casually destroys all remaining evidence explaining the disappearances of Bathurst, Amelia Earhart, Jimmy Hoffa, and Ambrose Bierce, and places their bones anonymously in a "display of early American artifacts." The story was selected for inclusion in the 1993 edition of The Best American Short Stories.