 Parrish illustrated "The Great Southwest" articles by Raymond Stannard Baker which appeared in "Century Magazine".A prolific and versatile artist-illustrator, "Big Bill" Koerner's work gained considerable visibility through his cover and story illustrations for the "Saturday Evening Post", "The Ladies' Home Journal", "Harper's Magazine", "McClure's Magazine", "American Magazine", "Cosmopolitan" and "Redbook".At the time of his death in 1938 at fifty-eight, the artist had received commissions for over 500 paintings and completed drawings for more than 200 western-themed stories.