Question: Erskine Caldwell and Cormac McCarthy, have which mutual occupation?

Context paragraphs:
The Gardener's Son: The Gardener’s Son is a screenplay by American writer Cormac McCarthy.  It is the first published screenplay written by McCarthy, who primarily writes novels but has also written two plays and had four of his novels adapted into feature-length films.  The story is based around a strange murder in Graniteville, South Carolina in 1876 that is without many details.  At the request of director Richard Pearce, McCarthy wrote the screenplay for a two-hour episode of the television series "Visions", which was broadcast by PBS on January 6, 1977.  The story focuses on a young man embittered by the changes in his community due to the capitalist ways of the owner of the town's cotton mill.  His anger grows until his rage consumes both himself and the families caught up in it.  The episode was nominated for two Emmy awards and the screenplay has gone on to be published in book form.

The Medicine Man (story): "The Medicine Man" is a humorous short story by Erskine Caldwell.  It was included in "We Are the Living" (1933).  It was also included in the "Stories of Erskine Caldwell", a collection of 96 stories first published in 1953 and re-issued in 1996 by the University of Georgia Press. .

Erskine Caldwell: Erskine Preston Caldwell (December 17, 1903 – April 11, 1987) was an American novelist and short story writer.  His writings about poverty, racism and social problems in his native Southern United States in novels such as "Tobacco Road" (1932) and "God's Little Acre" (1933) won him critical acclaim, but also made him controversial among Southerners of the time who felt he was deprecating the people of the region.

God's Little Acre (film): God's Little Acre is a 1958 American film of Erskine Caldwell's 1933 novel of the same name.  It was directed by Anthony Mann and shot in black and white by cinematographer Ernest Haller.  Although the film was not released until August 1958, its production schedule is indicated as September 11 to late October 1957.

You Have Seen Their Faces: You Have Seen Their Faces is a book by photographer Margaret Bourke-White and novelist Erskine Caldwell.  It was first published in 1937 by Viking Press, with a paperback version by Modern Age Books following quickly.  Bourke-White and Caldwell married in 1939.

Kneel to the Rising Sun: Kneel to the Rising Sun is a collection of short stories by Erskine Caldwell first published in 1935.  The seventeen stories, only a few pages each, all deal with various tragedies occurring in the early twentieth century American South, chiefly caused by poverty or racism.  Caldwell is most well known for his novels, such as "Tobacco Road"; however, "Kneel to the Rising Sun" is held in high acclaim by his critics.

Tobacco Road (play): Tobacco Road is a play by Jack Kirkland first performed in 1933, based on the 1932 novel of the same name by Erskine Caldwell.  The play ran on Broadway for a total of 3,182 performances, becoming the longest-running play in history at the time.  As of 2014, it was still the 18th longest-running Broadway show in history, as well as being the second-longest running non-musical ever on Broadway.

Place Called Estherville: Place Called Estherville is a novel written by Erskine Caldwell, most famous for his novels "Tobacco Road" and "God's Little Acre".  The book was first published in 1949 by Duell, Sloan & Pearce and later published in paperback by Signet Books.  It would go on to sell more than 1.5 million copies.  The novel centers on a biracial brother and sister, Ganus and Kathyanne Bazemore.  After their mother dies, they move to a segregated town called Estherville to help take care of their sick aunt.  They face abuse from the town that culminates in tragedy.

Cormac McCarthy: Cormac McCarthy (born Charles McCarthy; July 20, 1933) is an American novelist, playwright, and screenwriter.  He has written ten novels, spanning the Southern Gothic, Western, and post-apocalyptic genres.

God's Little Acre: God's Little Acre is a 1933 novel by Erskine Caldwell about a dysfunctional farming family in Georgia obsessed with sex and wealth.  The novel's sexual themes were so controversial that the New York Society for the Suppression of Vice asked a New York state court to censor it.  The novel was made into a film of the same name in 1958.  Though controversial, the novel became an international best seller with over 10 million copies sold.  "God's Little Acre" is Caldwell's most popular novel, though his reputation is often tied to "Tobacco Road (novel)" which was listed in the Modern Library 100 Best Novels.

Supporting paragraphs: Erskine Caldwell Cormac McCarthy
Answer: novelist