Final answer:
N.C. Wyeth painted advertisements featuring cowboys and gold miners for the Cream of Wheat cereal brand, contributing to the mythology of the American West.
Step-by-step explanation:
N.C. Wyeth created advertisements filled with imagery of cowboys and gold miners for the Cream of Wheat cereal brand.
While the question refers to N.C. Wyeth, the provided information regarding A Dash for the Timber does not relate directly to the answer as it discusses Frederic Remington's work, which is different from Wyeth's illustrations for Cream of Wheat.
However, both artists contributed to the perpetuation of the myth and popularity of the cowboy in American culture. In particular, Wyeth's Cream of Wheat ads are well-known examples of his commercial art, showcasing his ability to capture the spirit of the American West with dramatic and engaging scenes that resonated with the public.