The Black Marble is a 1980 mystery/romantic comedy film directed by Harold Becker, based on a novel by Joseph Wambaugh.
 It stars Robert Foxworth, Paula Prentiss and Harry Dean Stanton.
Joseph Aloysius Wambaugh, Jr. (born January 22, 1937) is a bestselling American writer known for his fictional and non-fictional accounts of police work in the United States.
 Several of his first novels were set in Los Angeles, California, and its surroundings, and featured Los Angeles police officers as protagonists.
The Blue Knight is the second novel by former LAPD detective Joseph Wambaugh, and was written while he was still a serving detective.
 It follows the last days on the beat for a veteran LAPD police officer, detailing his thoughts and actions from a first person perspective.
 The narrative is written in a coarse, sometimes self-deprecating manner; in the first chapter, Bumper refers to himself as having "an ass two nightsticks wide".
The Choirboys is a 1977 American comedy-drama film directed by Robert Aldrich, written by Christopher Knopf and Joseph Wambaugh based on Wambaugh's novel of the same title.
 It features an ensemble cast including Charles Durning, Louis Gossett, Jr., Randy Quaid, and James Woods.
 The film was released to theaters by Universal Pictures on December 23, 1977.
The New Centurions, written by Joseph Wambaugh, is a 1971 novel depicting the stresses of police work in Los Angeles, California in the early 1960s.
 The author wrote the novel, his first, while a working member of the Los Angeles Police Department.
 The novel became a film starring George C. Scott and Stacy Keach.
The Delta Star is a novel by author Joseph Wambaugh first published in 1983.
 The book tells several stories of a group of police in the Rampart Division of the Los Angeles Police Department.
 The main characters include Detective Mario Villalobos and The Bad Czech.
James Gordon Farrell (25 January 1935 – 11 August 1979) was a Liverpool-born novelist of Irish descent.
 He gained prominence for a series of novels known as the "Empire Trilogy" ("Troubles", "The Siege of Krishnapur" and "The Singapore Grip"), which deal with the political and human consequences of British colonial rule.
The Blue Knight is an American CBS crime TV series, running in 1975 and 1976, starring George Kennedy as Officer Bumper Morgan.
 The show was based on the novel by Joseph Wambaugh ("The Blue Knight") and produced by Lorimar Productions.
 It was also inspired by the 1973 TV film "The Blue Knight", starring William Holden, which ran before the TV show premiered.
Echoes in the Darkness is the title of a 1987 book by crime writer Joseph Wambaugh which also became a made-for-TV movie the same year.
 The book details the lurid tale of the murder of Pennsylvania's Upper Merion Area High School English teacher Susan Reinert and her two children in 1979.
 The case captured national media attention.
 Both her boss, high school principal Jay C. Smith, and her lover and colleague William Bradfield were convicted, although Smith's conviction was later overturned, because of police and prosecutorial misconduct in the case.
The Secrets of Harry Bright is the seventh novel written by former Los Angeles Police Department detective Joseph Wambaugh.
 Published in 1985, the book continues a pattern of Wambaugh crime fiction beginning with "The Choirboys" that uses black humor to explore the psychological effects of prolonged stress on veteran police officers.
 As with all his novels, "The Secrets of Harry Bright", set in November 1984, is contemporaneous with the time frame in which it was written and includes numerous allusions and references to events and personalities of the time.

Question: Who was born first, J. G. Farrell or Joseph Wambaugh?
Answer: James Gordon Farrell