Question: Are both Babes in Toyland and White Fang based on novels?

Context articles: White Fang (1991 film)
White Fang 2: Myth of the White Wolf
Babes in Toyland (1961 film)
Challenge to White Fang
Babes in Toyland (operetta)
White Fang to the Rescue
White Fang (1936 film)
White Fang
White Fang and the Hunter
The Legend of White Fang

White Fang is a 1991 American Northern adventure film directed by Randal Kleiser, starring Ethan Hawke, Klaus Maria Brandauer and Seymour Cassel.
 Based on Jack London's novel "White Fang", it tells the story of the friendship between a Yukon gold hunter and a wolfdog.
White Fang 2: Myth of the White Wolf is a 1994 American Northern adventure film directed by Ken Olin.
 A sequel to the 1991 "White Fang", it stars Scott Bairstow, Alfred Molina, and Geoffrey Lewis.
 Filming took place in Aspen, Colorado and Vancouver, British Columbia.
 Walt Disney Home Video released this movie on VHS October 19, 1994.
Babes in Toyland is a 1961 American Technicolor Christmas musical film directed by Jack Donohue and distributed to theatres by Buena Vista Distribution.
 It stars Ray Bolger as Barnaby, Annette Funicello as Mary Contrary, Tommy Sands as Tom Piper, and Ed Wynn as the Toymaker.
The Return of White Fang (Italian: "Il ritorno di Zanna Bianca" ) is a 1974 film directed by Lucio Fulci.
 It was part of a trend of films inspired by "Call of the Wild" (1972), which was a surprise hit in Italy.
 Other European productions followed including "Hellhounds of Alaska", Harald Reinl's "Cry of the Black Wolves", and "White Fang" and "Return of White Fang" both by Fulci.
Babes in Toyland is an operetta composed by Victor Herbert with a libretto by Glen MacDonough (1870–1924), which wove together various characters from Mother Goose nursery rhymes into a Christmas-themed musical extravaganza.
 Following the extraordinary success of their stage musical "The Wizard of Oz", which was produced in New York beginning in January 1903, producer Fred R. Hamlin and director Julian P. Mitchell hoped to create more family musicals.
 MacDonough had helped Mitchell with revisions to the "Oz" libretto by L. Frank Baum.
 Mitchell and MacDonough persuaded Victor Herbert to join the production.
 "Babes in Toyland" features some of Herbert's most famous songs – among them "Toyland", "March of the Toys", "Go To Sleep, Slumber Deep", and "I Can't Do the Sum".
 The theme song "Toyland", and the most famous instrumental piece from the operetta, "March of the Toys", occasionally show up on Christmas compilations.
Zanna Bianca alla riscossa (internationally released as White Fang to the Rescue) is a 1974 Italian adventure film directed by Tonino Ricci.
 It is an unofficial sequel of Lucio Fulci's "White Fang", in which Ricci was second unit director.
 The film received mixed reviews.
White Fang is a 1936 American action film directed by David Butler and written by Sam Duncan, Gene Fowler and Hal Long.
 The film stars Michael Whalen, Jean Muir, Slim Summerville, Charles Winninger, John Carradine and Jane Darwell.
 It is based on the novel "White Fang" by Jack London.
 The film was released on July 17, 1936, by 20th Century Fox.
White Fang is a novel by American author Jack London (1876–1916) — and the name of the book's eponymous character, a wild wolfdog.
 First serialized in "Outing" magazine, it was published in 1906.
 The story takes place in Yukon Territory and the Northwest Territories, Canada, during the 1890s Klondike Gold Rush and details White Fang's journey to domestication.
 It is a companion novel (and a thematic mirror) to London's best-known work, "The Call of the Wild", which is about a kidnapped, domesticated dog embracing his wild ancestry to survive and thrive in the wild.
Zanna Bianca e il cacciatore solitario (internationally released as White Fang and the Hunter) is a 1975 Italian adventure film directed by Alfonso Brescia.
 Despite the title tries to market the commercial success of Lucio Fulci's "White Fang", the film's plot has no connection with the novel.
 The film was poorly received by critics, being defined as "pathetic" and marked as "trash", and gained some cult status in reason of its reputation.
The Legend of White Fang is a cartoon series based on the novel "White Fang" by Jack London