The Sovereignty of Good is a book of moral philosophy by Iris Murdoch.
 First published in 1970, it comprises three previously published papers, all of which were originally delivered as lectures.
 Murdoch argued against the prevailing consensus in moral philosophy, proposing instead a Platonist approach.
 "The Sovereignty of Good" is Murdoch's best known philosophy book.
Under the Net was the first novel of Iris Murdoch, published in 1954.
 Set in London, it is the story of a struggling young writer, Jake Donaghue.
 Its mixture of the philosophical and the picaresque has made it one of Murdoch's most popular, although least favoured by herself.
Joseph Victor O'Connor is an Irish novelist.
 His 2002 historical novel "Star of the Sea" was an international number one bestseller.
 Before success as an author he was a journalist with the "Sunday Tribune" newspaper and "Esquire magazine".
 He is a regular contributor to Raidió Teilifís Éireann (RTÉ).
 He is a member of the Irish artists' association Aosdána.
Sartre: Romantic Rationalist is a book by Iris Murdoch.
 Published in 1953 by Bowes & Bowes of Cambridge, it was Murdoch's first book and the first book about Jean-Paul Sartre's work to be published in English.
Iris is a 2001 British-American biographical drama film that tells the story of Irish novelist Dame Iris Murdoch and her relationship with John Bayley.
 The film contrasts the start of their relationship, when Murdoch (Kate Winslet) was an outgoing, dominant individual as compared to her timid and scholarly partner Bayley (Hugh Bonneville), and their later life, when Murdoch (Judi Dench) was suffering from Alzheimer's disease and tended to by a frustrated Bayley (Jim Broadbent) in their North Oxford home in Charlbury Road.
A Severed Head is a satirical, sometimes farcical 1961 novel by Iris Murdoch.
 It was Murdoch's fifth published novel.
Elegy for Iris is a 1999 memoir by John Bayley, about his marriage to fellow author Iris Murdoch, who suffered from Alzheimer's disease in her last years.
 Bayley also wrote two more books about his life with Murdoch, "Iris and Her Friends" and "Widower's House".
Jackson's Dilemma is a novel by Iris Murdoch, published in 1995.
 It was Murdoch's last novel; she died four years later, on 8 February 1999.
Dame Jean Iris Murdoch ( ; 15 July 1919 – 8 February 1999) was an Anglo-Irish novelist and philosopher, best known for her novels about good and evil, sexual relationships, morality, and the power of the unconscious.
 Her first published novel, "Under the Net", was selected in 1998 as one of Modern Library's 100 best English-language novels of the 20th century.
 In 1987, she was made a Dame Commander of the Order of the British Empire.
 Her books include "The Bell" (1958), "A Severed Head" (1961), "The Red and the Green" (1965), "The Nice and the Good" (1968), "The Black Prince" (1973), "Henry and Cato" (1976), "The Sea, the Sea" (1978, Booker Prize), "The Philosopher's Pupil" (1983), "The Good Apprentice" (1985), "The Book and the Brotherhood" (1987), "The Message to the Planet" (1989), and "The Green Knight" (1993).
 In 2008, "The Times" ranked Murdoch twelfth on a list of "The 50 greatest British writers since 1945".
Hazel Elizabeth "Betty" Hester (born 1922 or 1923 ; died December 26, 1998 ) was an American correspondent of influential twentieth-century writers, including Flannery O'Connor and Iris Murdoch.
 Hester wrote several short stories, poems, diaries, and philosophical essays, none of which were published.

Question: Are Joseph O'Connor and Iris Murdoch both novelist?
Answer: yes