Eric Frank Russell was a British writer best known for his science fiction novels and short stories. Much of his work was first published in the United States, in John W. Campbell's Astounding Science Fiction and other pulp magazines. Russell also wrote horror fiction for Weird Tales and non-fiction articles on Fortean topics. Up to 1955 several of his stories were published under pseudonyms, at least Duncan H. Munro and Niall(e) Wilde.

Charles Hoy Fort was an American writer and researcher who specialized in anomalous phenomena. The terms "Fortean" and "Forteana" are sometimes used to characterize various such phenomena. Fort's books sold well and are still in print. His work continues to inspire admirers, who refer to themselves as "Forteans", and has influenced some aspects of science fiction.