Lillian Hoban (May 18, 1925 – July 17, 1998) was an American illustrator and children's writer best known for picture books created with her husband Russell Hoban.
 According to OCLC, she has published 326 works in 1,401 publications in 11 languages.
Russell Conwell Hoban (February 4, 1925 – December 13, 2011) was an American expatriate writer.
 His works span many genres, including fantasy, science fiction, mainstream fiction, magical realism, poetry, and children's books.
The Mouse and His Child is a novel by Russell Hoban first published in 1967.
 It has been described as "a classic of children's literature and is the book for which Hoban is best known."
 It was adapted into an animated film in 1977.
 A new edition with new illustrations by David Small was released in 2001.
Jacklight is a 1984 poetry collection by Louise Erdrich.
 The collection grew from poems Erdrich wrote for her 1979 Master of Arts thesis at Johns Hopkins University.
The Round House is a novel by American writer Louise Erdrich, first published in 2012.
 It is her 14th novel.
 Some critics considered it a thematic sequel to Erdrich's 2008 novel "The Plague of Doves" due to its themes of revenge.
 Like most of Erdrich's other works it is set on an unnamed Indian reservation in North Dakota.
The Medusa Frequency is a 1987 novel by Russell Hoban.
 Written in a lyrical, often magic realist style, it crosses a number of genres including comedy and fantasy without fitting easily into any.
 Its themes include loss, fidelity, mythology, perception and creativity.
Dinner at Alberta's is a children's book written by Anglo American author Russell Hoban.
Aimed at the pre-middle grade reader, it was originally published in 1972 but has had various editions by Red Fox and Penguin Books in 1992.
 It was illustrated by James Marshall.
Tracks is a novel by Louise Erdrich, published in 1988.
 It is the third in a tetralogy of novels beginning with "Love Medicine" that explores the interrelated lives of four Anishinaabe families living on an Indian reservation near the fictional town of Argus, North Dakota.
 Within the saga, "Tracks" is earliest chronologically, providing the back-story of several characters such as Lulu Lamartine and Marie Kashpaw who become prominent in the other novels.
 As in many of her other novels, Erdrich employs the use of multiple first-person narratives to relate the events of the plot, alternating between Nanapush, a tribal patriarch, and Pauline, a young girl of mixed heritage.
Love Medicine is Louise Erdrich’s first novel, published in 1984.
 Erdrich revised and expanded the novel for an edition issued in 1993, and then revised it again for the 2009 edition.
 The book explores 60 years in the lives of a small group of Chippewa (also known as Ojibwa or Anishinaabe) living on an unnamed Ojibwe Reservation in North Dakota (possibly based on the Turtle Mountain Indian Reservation).
 "Love Medicine" won the 1984 National Book Critics Circle Award.
Louise Erdrich (born Karen Louise Erdrich, June 7, 1954) is an American author, writer of novels, poetry, and children's books featuring Native American characters and settings.
 She is an enrolled member of the Turtle Mountain Band of Chippewa Indians, a band of the Anishinaabe (also known as Ojibwe and Chippewa).

Question: Which author spans more genres, Russell Hoban or Louise Erdrich?
Answer: Russell Conwell Hoban