Sir Arthur Conan Doyle was a male spiritist. He is one of the real-life historical figures featured in Miss Peregrine's Museum of Wonders as being secretly peculiar.
History[]
Born in 1859, Conan Doyle was the author of Sherlock Holmes. He was a spiritist who had a peculiar " 'second sight' that allowed him to peer, on occasion, beyond the veil of death." World War I, in which one of his sons was killed, heightened this ability. Conan Doyle wrote books, held séances, sat with mediums, professed to believe in fairies, and was a member of the Ghost Club in London, in which he was not the only peculiar.
He may have lived his later years in a Sussex loop and hid his knowledge of the peculiar world from the normal one, knowing the harm that it would bring.