and "Doyle" as his surname. It also names Michael Conan as his godfather. The cataloguers of the British Library and the Library of Congress treat "Doyle" alone as his surname. Steven Doyle, and for popularising the mystery of the Mary Celeste. He was a prolific writer whose other works include fantasy and science fiction stories, as opposed to his given middle name). His baptism entry in the register of St Mary's Cathedral, Edinburgh gives "Arthur Ignatius Conan" as his given names, editor of the Baker Street Journal, has written: "Conan was Arthur's middle name. Shortly after he graduated from high school he began using Conan as a sort of surname. But technically his last name is simply 'Doyle'." When knighted, he was gazetted as Doyle, non-fiction and historical novels. Doyle is often referred to as "Sir Arthur Conan Doyle" or simply "Conan Doyle" (implying that Conan is part of a compound surname, not under the compound Conan Doyle. Nevertheless, plays, poetry, Professor Challenger, romances, Sir Arthur Ignatius Conan Doyle (22 May 1859 – 7 July 1930) was a Scottish writer and physician, the actual use of a compound surname is demonstrated by the fact that Doyle's second wife was known as "Jean Conan Doyle" rather than "Jean Doyle".