Question: Were Mervyn Peake and Philip K. Dick both writers?

Context paragraphs:
Gormenghast (series): Gormenghast is a fantasy series by British author Mervyn Peake, about the inhabitants of Castle Gormenghast, a sprawling, decaying, gothic-like structure.  Originally conceived as a single on-going novel, the series was ended by Peake's death and comprises three novels, "Titus Groan" (1946), "Gormenghast" (1950), "Titus Alone" (1959) and a novella, "Boy in Darkness" (1956), whose canonical status is debated.  Peake was writing a fourth novel, "Titus Awakes" at the time of his death, which was later completed and released by Peake's widow in 2009.

The Philip K. Dick Reader: The Philip K. Dick Reader is a collection of science fiction stories by American writer Philip K. Dick.  It was first published by Citadel Twilight in 1997.  Many of the stories had originally appeared in the magazines "If", "Science Fiction Adventures", "Science Fiction Stories", "Orbit", "Fantasy and Science Fiction", "Imagination", "Future", "Galaxy Science Fiction", "Beyond Fantasy Fiction", "Satellite", "Imaginative Tales", "Fantastic Universe" and "Space Science Fiction".  It is identical in content and order to the edition of volume 3 of the Collected Stories of Philip K. Dick produced by the same publisher apart from the substitution of three stories in positions 21-23 of 24 and the omission of the end notes in the Collected Stories edition.  At press time, stories 21 and 24 had already been made into successful movie adaptations and stories 22 and 23 had been optioned.

Ernest Cromwell Peake: Ernest Cromwell Peake (18 August 1874 – 24 December 1950) was an English Missionary of the London Missionary Society who worked in China, from 1899 to 1922.  He was the first medical missionary to work in Hengchow (Hengzhou, modern Hengyang), in Hunan Province, China where he set up a clinic and dispensary.  He was also appointed head of the Mackenzie Memorial Hospital in Tianjin, China in 1912.  Peake was known for teaching Chinese locals about medicine, and for being one of the first missionaries to bring modern medical techniques to China.  He was the father of Mervyn Peake, the writer and poet.

Philip K. Dick Award: The Philip K. Dick Award is a science fiction award given annually at Norwescon sponsored by the Philadelphia Science Fiction Society and (since 2005) supported by the Philip K. Dick Trust, and named after science fiction and fantasy writer Philip K. Dick.  It has been awarded since 1983, the year after Dick's death.  Works that have received the award are identified on their covers as "Best Original SF Paperback".  They are awarded to the best original paperback published each year in the US.

The Collected Stories of Philip K. Dick: The Collected Stories of Philip K. Dick is a collection of 118 science fiction stories by Philip K. Dick.  It was first published by Underwood-Miller in 1987 as a five volume set.  See Philip K. Dick bibliography for information about the mass market reprints.

Boy in Darkness: Boy in Darkness is a novella written by Mervyn Peake.  It was first published in 1956 by Eyre & Spottiswoode as part of the anthology "Sometime, Never: Three Tales of Imagination" (with other stories by William Golding and John Wyndham).  A corrupt version of "Boy in Darkness" was published both in an anthology, "The Inner Landscape" (1969), and separately in 1976 with an introduction by Peake's widow, Maeve Gilmore.  Referring to the corrupt text, she wrote that "although the Boy in "Boy in Darkness" is assuredly Titus Groan, [Peake] did not call him so by name"; however, adding the name Titus was one of the specific changes that Peake made between writing and publishing his novella.  The correct text has recently become available again in an anthology entitled "Boy in Darkness and Other Stories", with a foreword by Joanne Harris and a preface by Peake's son Sebastian, as well as Maeve Gilmore's uncorrected introduction from 1976.

Mervyn Peake: Mervyn Laurence Peake (9 July 1911 – 17 November 1968) was an English writer, artist, poet, and illustrator.  He is best known for what are usually referred to as the "Gormenghast" books.  The three works were part of what Peake conceived as a lengthy cycle, the completion of which was prevented by his death.  They are sometimes compared to the work of his older contemporary J. R. R. Tolkien, but his surreal fiction was influenced by his early love for Charles Dickens and Robert Louis Stevenson rather than Tolkien's studies of mythology and philology.

Captain Slaughterboard Drops Anchor: Captain Slaughterboard Drops Anchor is a darkly humorous children's picture book written and illustrated by the British author Mervyn Peake and published by Country Life in 1939.  It was his first published work.  The story concerns the nautical exploits of the titular captain and his rambunctious crew aboard their ship "The Black Tiger".  After some episodic adventures they capture a small humanoid, referred to only as the Yellow Creature, with whom Slaughterboard develops a strange platonic infatuation.  His loyal crew gradually fall prey to misadventure and the book ends with the Captain and the Yellow Creature forsaking piracy for fishing on the creature's pink island.  The book is notable for Peake's poetic style and his fine illustrations of the many fantastical beasts on the island.

Adjustment Team: "Adjustment Team" is a science fiction short story by American writer Philip K. Dick.  It was first published in "Orbit Science Fiction" (September–October 1954, No. 4) with illustration by Faragasso.  It was later reprinted in "The Sands of Mars and Other Stories" (Australian) in 1958, "The Book of Philip K. Dick" in 1973, "The Turning Wheel and Other Stories" (United Kingdom) in 1977, "The Collected Stories of Philip K. Dick" in 1987 (Underwood–Miller), 1988 (Gollancz, United Kingdom), 1990 (Citadel Twilight, United States), "Selected Stories of Philip K. Dick" in 2002 and in "The Early Work of Philip K. Dick, Volume One: The Variable Man & Other Stories" in 2009.

Philip K. Dick: Philip Kindred Dick (December 16, 1928 – March 2, 1982) was an American writer notable for publishing works of science fiction.

Supporting paragraphs: Mervyn Peake Philip K. Dick
Answer: yes