In "The Judex Codex" (published in The Shadow of Judex, 2013), the writer Dennis E. Power says that Quatermain had a daughter by Ayesha; this reconciles Quatermain's family tree with the Allan Quatermain comic book series created by Alfredo Castelli.
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The short story "Her and Allan" by Simon Bucher-Jones in the anthology, Wildthyme in Purple, recounts Quatermain's meeting with the time traveller, Iris Wildthyme - or, as she is known in the story, Her.
Edgar Allan Poe | Gary Allan | Allan Holdsworth | Allan Ramsay | Allan Cunningham | Max Allan Collins | Allan Sherman | Allan Ramsay (artist) | Allan Moffat | Allan Cunningham (botanist) | Allan Border | Mitch Allan | Allan Octavian Hume | Allan Kaprow | Allan Harris | David Allan Coe | Bethwell Allan Ogot | Allan Cup | Ted Allan | Lucy Allan | Edgar Allan Poe's | Allan Williams | Allan Warren | Allan Vogel | Allan R. Bomhard | Allan Quatermain | Allan McCollum | Allan Heinberg | Allan Ball | Allan Arbus |
In The League of Extraordinary Gentlemen: Black Dossier, the Crimson Avenger is briefly mentioned as having met with Allan Quatermain and Mina Murray during the latter two's self-exile from Britain during the years of the Ingsoc government.
He is mentioned as being the great-grandson of The Devil Doctor (because of the Doctor's creator, Sax Rohmer) and fights against Mina Murray, Allan Quatermain, Paradise and Dean Moriarty (who is the great-grandson of Manchu's rival and Sherlock Holmes' arch-nemesis Professor Moriarty).