Amaryllis Night and Day is a 2001 novel by Russell Hoban, incorporating elements of magic realism and romance.
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.
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.
The Mouse and His Child is a 1977 animated film based on the 1967 novel of the same name by Russell Hoban.
 In United States, the film is also known as The Extraordinary Adventures of the Mouse and His Child.
Lydia Davis (born July 15, 1947) is an American writer noted for literary works of extreme brevity (commonly called "flash fiction").
 Davis is also a short story writer, novelist, essayist, and translator from French and other languages, and has produced several new translations of French literary classics, including "Swann’s Way" by Marcel Proust and "Madame Bovary" by Gustave Flaubert.
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 Marzipan Pig (1986, ISBN  ) is a children's book by Russell Hoban.
 The plot involves a marzipan pig that has somehow fallen behind a couch.
Pilgermann is a 1983 novel by Russell Hoban, set in the Middle Ages and depicting the journey of a Jew across Europe and Northern Africa on his way to the Holy Land.
Riddley Walker is a science fiction novel by Russell Hoban, first published in 1980.
 It won the John W. Campbell Memorial Award for best science fiction novel in 1982, as well as an Australian Science Fiction Achievement Award in 1983.
 It was additionally nominated for the Nebula Award for Best Novel in 1981.

Question: What occupation is shared by Americans Lydia Davis and Russell Hoban? 
Answer: writer