Question: Who is this English novelist known for his children's fantasy novels and his retellings of traditional British folk tales, one of which was published by Collins in 1960?

Context articles: The Weirdstone of Brisingamen
Alfred Ollivant (writer)
Krasnoludek
Brothers Grimm
The Young Tradition
Alan Garner
British folk rock
Mr. Fox
Liege &amp; Lief
Wildwood (novel)

The Weirdstone of Brisingamen: A Tale of Alderley is a children's fantasy novel written by the English author Alan Garner (born 1934).
 Garner began work on the novel, his literary debut, in 1957 after he moved into the late mediaeval house Toad Hall, in Blackden, Cheshire.
 The story, which took the local legend of The Wizard of the Edge as a partial basis for the novel's plot, was influenced by the folklore and landscape of the neighbouring Alderley Edge where he had grown up.
 Upon completion the book was picked up by the publisher Sir William Collins who released it through his publishing company Collins in 1960.
Alfred Ollivant (1874–1927) was an English novelist known best for his novel "Owd Bob".
 Ollivant also published about a dozen other novels ranging from small-scale cautionary tales to grand historical stories.
Krasnoludek (or "krasnal") (Russian: Краснолюдки) is a Polish mythological type of gnome / dwarf, common in many Polish and translated folk tales (for example, Brothers Grimm "Snow White and the Seven Dwarfs" is translated into Polish language as "Królewna Śnieżka i siedmiu krasnoludków").
 They resemble small humans and wear pointy red hats.
 Due to the popularization of fantasy literature, they are now differentiated from both gnomes (Polish: "gnom") and dwarfs (Polish: "krasnolud"), both of which are used in fantasy literature context, while the word "krasnoludek" still remains mostly the domain of older folk tales.
 The word "krasnal ogrodowy" is also used to describe garden dwarfs / gnomes.
The Brothers Grimm ("die Brüder Grimm " or "die Gebrüder Grimm "), Jacob and Wilhelm Grimm, were German academics, philologists, cultural researchers, lexicographers and authors who together collected and published folklore during the 19th century.
 They were among the best-known storytellers of folk tales, and popularized stories such as "Cinderella" ("Aschenputtel "), "The Frog Prince" ("Der Froschkönig "), "The Goose-Girl" ("Die Gänsemagd"), "Hansel and Gretel" ("Hänsel und Gretel "), "Rapunzel", "Rumpelstiltskin" ("Rumpelstilzchen "), "Sleeping Beauty" ("Dornröschen "), and "Snow White" ("Schneewittchen ").
 Their first collection of folk tales, "Children's and Household Tales" ("Kinder- und Hausmärchen "), was published in 1812.
The Young Tradition were an English folk group of the 1960s, formed by Peter Bellamy, Royston Wood and Heather Wood.
 They recorded three albums of mainly traditional British folk music, sung in arrangements for their three unaccompanied voices.
Alan Garner OBE (born 17 October 1934) is an English novelist best known for his children's fantasy novels and his retellings of traditional British folk tales.
 Much of his work is firmly rooted in the landscape, history and folklore of his native county of Cheshire, North West England, being set in the region and making use of the native Cheshire dialect.
British folk rock (sometimes called electric folk) is a form of folk rock developed in the United Kingdom from the mid 1960s, and was at its most significant in the 1970s.
 Though the merging of folk and rock music came from several sources, it is widely regarded that the success of "The House of the Rising Sun" by British band the Animals in 1964 was a catalyst, prompting Bob Dylan to "go electric", in which, like the Animals, he brought folk and rock music together, from which other musicians followed.
 In the same year, the Beatles began incorporating overt folk influences into their music, most noticeably on the song "I'm a Loser" from their "Beatles for Sale" album.
 The Beatles and other British Invasion bands, in turn, influenced the Californian band the Byrds, who released their recording of Dylan's "Mr Tambourine Man" in April 1965, setting off the mid-1960s folk rock movement.
 A number of British groups, usually those associated with the British folk revival, moved into folk rock in the mid-1960s, including the Strawbs, Pentangle, Eclection, and Fairport Convention.
Mr Fox were an early 1970s British folk rock band.
 They were seen as in the ‘second generation’ of British folk rock performers and for a time were compared with Steeleye Span and Sandy Denny’s Fotheringay.
 Unlike Steeleye Span they mainly wrote their own material in a traditional style and developed a distinct ‘northern’ variant of the genre.
 They demonstrate the impact and diversity of the British folk rock movement and the members went on to pursue significant careers within the folk rock and traditional music genres after they disbanded in 1972 having recording two highly regarded albums.
Liege & Lief is the fourth album by the English folk rock band Fairport Convention.
 It is the third and final album the group released in the UK in 1969, all of which prominently feature Sandy Denny as lead female vocalist (Denny did not appear on the group's 1968 debut album).
 It is also the very first Fairport album on which all songs have either been adapted (freely) from traditional British and Celtic folk material (for example "Matty Groves", "Tam Lin"), or else are original compositions (such as "Come All Ye", "Crazy Man Michael") written and performed in a similar style.
 By introducing songs of this genre into the group's repertoire Denny, who had previously sung and recorded traditional folk songs as a solo artist, was instrumental in this transformation.
 Although Denny quit the band even before the album's release, Fairport Convention has continued to the present day to make music almost exclusively within the traditional British folk music idiom, and are still most strongly associated with it.
Wildwood: The Wildwood Chronicles, Book 1 is a 2011 children's fantasy novel by The Decemberists' singer-songwriter Colin Meloy, illustrated by his wife Carson Ellis.
 The 541 page novel, inspired by classic fantasy novels and folk tales, is the story of two seventh-graders who are drawn into a hidden, magical forest, while trying to rescue a baby kidnapped by crows.
 They get caught up in an epic struggle, and learn of their connection to a magical parallel world while confronting adult authorities who are often cowardly or dishonest.
 The natural beauty and local color of Portland, Oregon figure prominently in the book.