Were Russell Hoban and Nathalie Sarraute both writers?
yes
Russell Hoban
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.
Nathalie Sarraute
Nathalie Sarraute (] ; July 18, 1900 – October 19, 1999) was a French lawyer and writer.
The Marzipan Pig
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. James Burr
James Burr is an English writer of dark, although often humorous, paranoiac fiction.
 His first collection of short stories, "Ugly Stories For Beautiful People" was published in 2007 and was favourably compared to the work of Russell Hoban, David Cronenberg, early Kurt Vonnegut.
 and Philip K. Dick.
 The collection featured "Foetal Attractions" which won second prize in the "Roadworks 2000 Short Story Competition" and two of the stories in the collection, “It” and “Blue” later garnered honorable mentions in that year's "The Year’s Best Fantasy and Horror".
 HellNotes described the collection as "Odd, unique, very cool, and extremely readable" while Horror World described Burr as "not merely a “new” voice, he is a fresh voice – a different and disturbing voice - and one deserving of your attention."
.
 His work has often been described as Bizarro fiction although he has no direct links to the group of writers working under that banner. Lucette Finas
Lucette Finas (born July 13, 1921) is a French author and essayist, part of the structuralist movement.
 She has published several articles relating interviews with French scholars and philosophers in the 1970s, like writers Nathalie Sarraute, philosopher and historian Michel Foucault or philosopher Jacques Derrida. The Mouse and His Child
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. Amaryllis Night and Day
Amaryllis Night and Day is a 2001 novel by Russell Hoban, incorporating elements of magic realism and romance. The Medusa Frequency
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. Alain Robbe-Grillet
Alain Robbe-Grillet (] ; 18 August 1922 – 18 February 2008) was a French writer and filmmaker.
 He was one of the figures most associated with the "Nouveau Roman" (new novel) trend of the 1960s, along with Nathalie Sarraute, Michel Butor and Claude Simon.
 Alain Robbe-Grillet was elected a member of the Académie française on 25 March 2004, succeeding Maurice Rheims at seat No. 32.
 He was married to Catherine Robbe-Grillet (née Rstakian). Lillian Hoban
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.