Question: Raymond Carver and Margaret Wilson, both are of which nationality?

Context paragraphs:
Carol Sklenicka: Carol Sklenicka (born 1948 in San Luis Obispo, California) is an American biographer and essayist best known as the author of "Raymond Carver: A Writer's Life", the first comprehensive biography of short story writer Raymond Carver.

Where I'm Calling From: "Where I'm Calling From" is a short story by American author Raymond Carver.  The story focuses on the effects of alcohol.  Throughout this story Carver experiments with the use of quotation and meditates on the healing factors of storytelling.  This story also lends its title to a collection of thirty-seven short stories compiled by Carver, "Where I'm Calling From: New and Selected Stories".

Raymond Carver: Raymond Clevie Carver Jr. (May 25, 1938 – August 2, 1988) was an American short-story writer and poet.  Carver contributed to the revitalization of the American short story during the 1980s.

Grace Wilson: Grace Margaret Wilson (25 June 1879 – 12 January 1957) was a high-ranked nurse in the Australian Army during World War I and the first years of World War II.  Wilson was born in Brisbane, and completed her initial training as a nurse in 1908.  After the outbreak of World War I she joined the Australian Army Nursing Service (AANS) and subsequently transferred to the First Australian Imperial Force.  From 1915 until 1919 she was the principal matron of the 3rd Australian General Hospital.  She served as the temporary matron-in-chief in the AIF Headquarters, London from late 1917 until early 1918.  Wilson returned to Australia in 1920 and left the AIF to work in civilian hospitals.  She was appointed the matron-in-chief of the AANS in 1925, and in September 1940 joined the Second Australian Imperial Force.  She served in the Middle East until August 1941, when she returned to Australia due to ill health.  She left the Army the next month, but from September 1943 worked in the Department of Manpower Directorate (Victoria)'s nursing control section.

Beginners (short story collection): Beginners is the title given to the manuscript version of Raymond Carver's 1981 short story collection "What We Talk About When We Talk About Love", published by Carver's widow Tess Gallagher in 2009.

Little Things (short story): "Little Things" is a short story by American writer Raymond Carver.  It was originally title "Mine", but was first published in "What We Talk About When We Talk About Love" under the title "Popular Mechanics."  It was then republished with the title "Little Things" in Carver's 1988 collection "Where I’m Calling From: New and Selected Stories".

Margaret Wilson (Scottish martyr): Margaret Wilson (c. 1667 – 11 May 1685) was a young Scottish Covenanter, from Wigtown in Scotland executed by drowning for refusing to swear an oath declaring James VII (James II of England) as head of the church.  She died along with Margaret McLachlan.  The two Margarets were known as the Wigtown Martyrs.  Wilson became the more famous of the two because of her youth.  As a teenager, her faith unto death became celebrated as part of the martyrology of Presbyterian churches.

Margaret Wilson (writer): Margaret Wilson (January 16, 1882 – October 6, 1973) was an American novelist.  She was awarded the 1924 Pulitzer Prize for "The Able McLaughlins".

Short Cuts (film): Short Cuts is a 1993 American comedy-drama film, directed by Robert Altman.  Filmed from a screenplay by Altman and Frank Barhydt, it is inspired by nine short stories and a poem by Raymond Carver.  Substituting a Los Angeles setting for the Pacific Northwest backdrop of Carver's stories, the film traces the actions of 22 principal characters, both in parallel and at occasional loose points of connection.  The role of chance and luck is central to the film, and many of the stories concern death and infidelity.

So Much Water So Close to Home: So Much Water So Close to Home is an album by Australian rock band Paul Kelly and the Messengers and was originally released in August 1989.  The title comes from a short story of the same name by author Raymond Carver.  Carver had died in August 1988.  Kelly would go on to co-write the score for the 2006 Australian film "Jindabyne",

Supporting paragraphs: Raymond Carver Margaret Wilson (writer)
Answer: American