During the interviews and in later correspondence, Josephine and Wyatt went to great lengths to keep her name out of Lake's book. Lake wrote Earp that he planned to send portions of the book to his New York agent, but Earp objected because he wanted to read it first. After Earp's death on January 13, 1929, Josephine continued to try to persuade Lake to leave her and Earp's former wife, Mattie Blaylock, out of the book, even threatening legal action. Lake finally published "Wyatt Earp: Frontier Marshal" in 1931, two years after Earp's death.