Question: Are Tim O'Brien and Colin Wilson both novelists?
Context: Colin Henry Wilson (26 June 1931 – 5 December 2013) was an English writer, philosopher and novelist.  He also wrote widely on true crime, mysticism and the paranormal, eventually authoring more than a hundred books.  Wilson called his philosophy "new existentialism" or "phenomenological existentialism", and maintained his life work was "that of a philosopher, and (his) purpose to create a new and optimistic existentialism". Colin Wilson is an American film producer.  His more notable film productions include "War of the Worlds", "Jurassic Park", "John Carter" and "Avatar". William Timothy "Tim" O'Brien (born October 1, 1946) is an American novelist.  He best known for his "The Things They Carried" (1990), a collection of linked short stories.  These semi-autobiographical stories were inspired by O'Brien's experiences in the Vietnam War.  In 2010 the "New York Times" described O'Brien's book as a Vietnam classic.  In addition, he is known for his war novel, "Going After Cacciato" (1978), also about wartime Vietnam, and later novels about postwar lives of veterans. The Philosopher's Stone is a 1969 novel by the English writer Colin Wilson.  It tells the story of two researchers who find a way to reach a higher state of consciousness, which leads to frightening revelations about humanity's distant history.  Like Wilson's 1967 novel "The Mind Parasites", "The Philosopher's Stone" uses motifs from H. P. Lovecraft's Cthulhu Mythos. The Space Vampires is a British science fiction horror novel written by author Colin Wilson, and first published in England and the United States by Random House in 1976.  Wilson's fifty-first book, it is about the remnants of a race of intergalactic vampires who are brought back from outer space and are inadvertently let loose on Earth. The Lost World: Jurassic Park is a 1997 American science-fiction adventure film and the second installment in the "Jurassic Park" film series.  A sequel to 1993's "Jurassic Park", the film was directed by Steven Spielberg and written by David Koepp, loosely based on Michael Crichton's 1995 novel "The Lost World".  The film was produced by Gerald R. Molen and Colin Wilson.  Actor Jeff Goldblum returns as the chaos-theorist and eccentric mathematician Ian Malcolm, leading a cast that includes Julianne Moore, Pete Postlethwaite, Vince Vaughn, Vanessa Lee Chester and Arliss Howard.  Goldblum is the only actor from the previous film to return with a major role.  Cameos feature return appearances by Richard Attenborough as John Hammond and a brief appearance by Joseph Mazzello and Ariana Richards as Hammond's grandchildren Tim and Lex. Anatomy of a Poet (released June 1994) is the eighth studio album from the British electronica duo In the Nursery.  It includes several tracks featuring samples of author Colin Wilson reading his favourite poetry.  The album was released on CD only. The Mind Parasites is a science fiction horror novel by eNGLISH author Colin Wilson.  It was published by Arkham House in 1967 in an edition of 3,045 copies.  It was Wilson's first and only book published by Arkham House. Adrift In Soho is a novel by Colin Wilson.  It was first published in England in 1961 by Victor Gollancz.  The novel describes the English beat generation.  The novel was republished to great acclaim by New London Editions in 2011, when Cathi Unsworth wrote 'Adrift in Soho is currently in production by Burning Films and with such rich source material, perhaps Wilson will now receive some contemporary reassessment for his continuing fascination with the human condition and the wit, warmth and insight that he brings to his accounts of those he has shared his unusual journeys with.' Colin Wilson (1931–2013) is a British writer.
Answer: yes