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.
Roy Campbell (poet)
Tolkien, who was then hard at work writing "The Lord of the Rings", was charmed by Campbell. In a letter to his son Christopher, Tolkien compared Campbell to Trotter, a torture-crippled hobbit character who appeared in an early draft of "The Lord of the Rings", to become the character of Aragorn in the final versions. Tolkien further commented, Here is a scion of an Ulster prot. family resident in S. Africa, most of whom fought in both wars, who became a Catholic after sheltering the Carmelite fathers in Barcelona — in vain, they were caught & butchered, and R.C. nearly lost his life. But he got the Carmelite archives from the burning library and took them through the Red country. [...] However it is not possible to convey an impression of such a rare character, both a soldier and a poet, and a Christian convert. How unlike the Left – the 'corduroy panzers' who fled to America [...]