J. R. R. Tolkien
The request for a sequel prompted Tolkien to begin what would become his most famous work: the epic novel "The Lord of the Rings" (originally published in three volumes 1954–1955). Tolkien spent more than ten years writing the primary narrative and appendices for "The Lord of the Rings", during which time he received the constant support of the Inklings, in particular his closest friend C. S. Lewis, the author of "The Chronicles of Narnia". Both "The Hobbit" and "The Lord of the Rings" are set against the background of "The Silmarillion", but in a time long after it.
Forrest Reid
He was a close friend of Walter de la Mare, whom he first met in 1913, and about whose fiction he published a perceptive book in 1929. Reid was also an influence on novelist Stephen Gilbert, and had good connections to the Bloomsbury Group of writers. Reid was a founding member of the Imperial Art League (later the Artists League of Great Britain). Reid was also a close friend of Arthur Greeves, the artist known to be C. S. Lewis's best friend. Greeves painted several portraits of Reid, now all in the possession of the Royal Belfast Academical Institution.