Wheeler-Nicholson wrote nonfiction about military topics, including the 1922 book Modern Cavalry. He also wrote fiction, including the Western hardcover novel Death at the Corral. By 1922 Wheeler-Nicholson had begun writing short stories for the pulps. The Major soon became a cover name, penning military and historical adventure fiction for such magazines as Adventure and Argosy. He additionally ghost wrote six adventure novels about air hero Bill Barnes for Street & Smith Publications.
