Question: Are both Halldór Laxness and Daphne du Maurier English?

Context articles: Not After Midnight
Cannon Hall, Hampstead
Gerald du Maurier
Sylvia Llewelyn Davies
Daphne du Maurier
Hungry Hill (film)
George du Maurier
Muriel Beaumont
Halldór Laxness
Llewelyn Davies boys

Not After Midnight is a 1971 collection of short stories by Daphne du Maurier.
 It was published in Britain under the title "Not After Midnight" by Gollancz (with a cover by Daphne du Maurier's daughter Flavia Tower), and published in America by Doubleday as Don't Look Now.
 The book contains several novella-length stories, all with different characters and themes but similar in that they touch on the supernatural or strange events.
 The Penguin Books edition, Harmondsworth and Ringwood, Victoria, Australia, was issued with the title "Don't Look Now and Other Stories" and a cover illustration by Charles Raymond in 1973.
Cannon Hall at 14 Cannon Place, Hampstead, London is a grade II* listed building that dates from around 1720.
 The house is the former home of the actor Gerald du Maurier, his wife Muriel Beaumont, and their three children, the writers Angela du Maurier and Daphne du Maurier and the painter Jeanne du Maurier.
Sir Gerald Hubert Edward Busson du Maurier (26 March 1873 – 11 April 1934) was an English actor and manager.
 He was the son of the author George du Maurier and brother of Sylvia Llewelyn Davies.
 During 1902, he married the actress Muriel Beaumont with whom he had three daughters: writers Angela du Maurier (1904–2002) and Daphne du Maurier (1907–1989), and painter Jeanne du Maurier (1911–1996).
 His popularity was due to his subtle and naturalistic acting: a "delicately realistic style of acting that sought to suggest rather than to state the deeper emotions".
Sylvia Jocelyn Llewelyn Davies (25 November 1866 – 27 August 1910), "née" Sylvia du Maurier, was the mother of the boys who were the inspiration for the stories of Peter Pan by J. M. Barrie.
 She was the daughter of cartoonist and writer George du Maurier and his wife Emma Wightwick, the elder sister to actor Gerald du Maurier, the aunt of novelists Angela and Daphne du Maurier and a great-granddaughter of Mary Anne Clarke, royal mistress of Prince Frederick, Duke of York and Albany.
Dame Daphne du Maurier, Lady Browning, DBE ( ; 13 May 1907 – 19 April 1989) was an English author and playwright.
Hungry Hill is a 1947 British film directed by Brian Desmond Hurst and starring Margaret Lockwood, Dennis Price and Cecil Parker with a screenplay by Terence Young and Daphne du Maurier, from the novel by Daphne du Maurier.
George Louis Palmella Busson du Maurier (6 March 18348 October 1896) was a Franco-British cartoonist and author, known for his cartoons in "Punch" and for his novel "Trilby".
 He was the father of actor Sir Gerald du Maurier and grandfather of writers Angela du Maurier and Dame Daphne du Maurier.
 He was also the father of Sylvia Llewelyn Davies and grandfather of the five boys who inspired J.M. Barrie's "Peter Pan".
Muriel Beaumont, Lady du Maurier (14 April 1876 – 27 November 1957) was an English stage actress.
 She was the wife of the actor Sir Gerald du Maurier and mother of the writers Angela du Maurier and Daphne du Maurier.
 She retired from the stage in 1910.
Halldór Kiljan Laxness (] ; born Halldór Guðjónsson; 23 April 1902 – 8 February 1998) was a twentieth-century Icelandic writer.
 Laxness wrote poetry, newspaper articles, plays, travelogues, short stories, and novels. Major influences included August Strindberg, Sigmund Freud, Sinclair Lewis, Upton Sinclair, Bertolt Brecht and Ernest Hemingway.
 In 1955 he was awarded the Nobel Prize in Literature; he is the only Icelandic Nobel laureate.
The Davies boys (the family only used the double surname Llewelyn Davies in formal contexts) were the sons of Arthur (1863–1907) and Sylvia Llewelyn Davies (1866–1910), the daughter of the French-born cartoonist and writer George du Maurier, and sister of actor Gerald du Maurier.
 The boys were the first cousins of Gerald's daughter, the author Daphne du Maurier.
 They were the inspiration for J. M. Barrie's Peter Pan, in which several of the characters were named after them.