Pilgrim's Progress is a 1678 novel by John Bunyan. Written during a stint in jail for holding religious services outside of an established church, it is laden with religious metaphors and has remained immensely popular ever since its publication.
There are parallels to the Joads' story, as the main character Christian journeys from the 'City of Destruction' to the 'Celestial City'.
The Winning of Barbara Worth by Harold Bell Wright tells the story of an eastern Dandy who moves to the southeastern desert of California and is transformed, physically and mentally, into a true man of the west. It was made into a movie (1926) starring Gary Cooper.
Miles Laboratories published Almanacs in the early to mid Twentieth Century.