Question: Dickinson P. Martin illustrated the fortieth book in the series of Oz books that was written by Elooise Jarvis McGraw and who?
Context: The Forbidden Fountain of Oz is a 1980 children's novel written by Eloise Jarvis McGraw and her daughter Lauren Lynn Mcgraw (or McGraw Wagner), and illustrated by Dick Martin.  As its title indicates, the book is one entry in the long-running series of Oz books written by L. Frank Baum and his many successors. The Rundelstone of Oz is a novel by Eloise Jarvis McGraw.  It is a volume in the series of fictional works about the Land of Oz, by L. Frank Baum and his successors. Litteraria Pragensia Books (LPB) is an independent press based at the Centre for Critical and Cultural Theory at the Philosophy Faculty of Charles University in Prague, Czech Republic.  Active since 2002, LBP has been periodically releasing new titles from the world of contemporary poetics, literature, critical theory & cultural studies.  It is staffed by an international editorial board of professors, including Louis Armand (writer) (Prague), Michael Groden (Western Ontario), Marjorie Perloff (Stanford), Ondrej Pilny (Prague), Martin Prochazka (Prague), Jean-Michel Rabaté (Pennsylvania), and Clare Wallace (Prague).  2012 marked the release of LPB's fortieth book title.  Additionally, LPB annually publishes the international poetics and arts magazine "VLAK". This is a list of characters in the original sequel Oz books by American author L. Frank Baum, and in the later continued Oz series by his grandson Roger S. Baum, Ruth Plumly Thompson, John R. Neill, Jack Snow, Rachel Cosgrove Payes, Eloise Jarvis McGraw and Lauren McGraw, Dick Martin, Eric Shanower, and Sherwood Smith.  Characters from Gregory Maguire's "Wicked" are not included, as his works, among others such as the work of March Laumer, are considered "heretical" in Baum scholarship (The term "heretical" was first applied to these books by Dr. Stephen J. Teller of Pittsburg State University in the Winter 1988 issue of "The Baum Bugle" and appears regularly in Oz fandom). Merry Go Round in Oz (1963) is the fortieth in the series of Oz books created by L. Frank Baum and his successors.  It was written by Eloise Jarvis McGraw and Lauren McGraw Wagner (her married name was dropped from reprinted editions after the marriage ended).  It was illustrated by Dick Martin. The Oz books form a book series that begins with "The Wonderful Wizard of Oz" (1900) and relate the fictional history of the Land of Oz.  Oz was created by author L. Frank Baum, who went on to write fourteen full-length Oz books.  All of the Baum written books are in the public domain in the United States.  Even while he was alive, Baum was styled as "the Royal Historian of Oz" to emphasize the concept that Oz is an actual place.  The illusion created was that characters such as Dorothy and Princess Ozma related their adventures in Oz to Baum themselves, by means of wireless telegraph. This page is a supplement to List of Oz books featuring published books, often by small publishing houses.  Their canonicity is up to the individual reader, with some purists considering them apocryphal.  As the Baum Oz books are in the public domain, no clearance needs to be obtained to write and publish fiction about the Oz characters, professionally or otherwise, making the question of canonicity somewhat subjective.  Additionally, both of Jack Snow's Oz books are in the public domain in the United States, as are Ruth Plumly Thompson's "The Royal Book of Oz", "Kabumpo in Oz", "The Wishing Horse of Oz", "Captain Salt in Oz", "Handy Mandy in Oz", "The Silver Princess in Oz", and "Ozoplaning with the Wizard of Oz", making the distinctive elements in those books usable as public domain content.  The most dramatic changes in her books are in "The Lost King of Oz" and "The Giant Horse of Oz", both of which remain protected under U.S. copyright law, and has rendered some known manuscripts unpublishable.  The Oz books of John R. Neill, Rachel R. Cosgrove, and Eloise Jarvis McGraw and her daughter Lauren are all protected under U.S. copyright, making their characters and developments unusable by others without permission. Eloise Jarvis McGraw (December 9, 1915 – November 30, 2000) was an American author of children's books and young adult novels.  She was awarded the Newbery Honor three times in three different decades, for her novels "Moccasin Trail" (1952), "The Golden Goblet" (1962), and "The Moorchild" (1997). " A Really Weird Summer" (1977) won an Edgar Award for Best Juvenile Mystery from the Mystery Writers of America.  McGraw had a very strong interest in history, and among the many books she wrote for children are "Greensleeves", "The Seventeenth Swap", and "Mara, Daughter of the Nile".  A Lewis Carroll Shelf Award was given to "Moccasin Trail" in 1963. Dickinson P. Martin (June 29, 1927 – February 14, 1990) was an artist from Chicago who illustrated a number of books related to The Oz books series, most notably, "Merry Go Round in Oz" (1963), the 40th and final title in the regular series, as well as many other children's books. Le Grand Duc is a "Lucky Luke" adventure written by Goscinny and illustrated by Morris.  It is the fortieth book in the series and it was originally published in French in the year 1973 .
Answer: Lauren McGraw Wagner