Following Jack's death, Charmian joined Eliza Shepard in saving their home the Beauty Ranch. She completed sales of screenplay rights with filmmakers. She also wrote prefaces to his writings that were published posthumously, including "Dutch Courage and Other Stories" (1922). She completed his unfinished novel "Cherry" for "Cosmopolitan" magazine. Perhaps her most significant activity to publicize London's works was trips abroad to arrange good translations and protect copyrights. As a result, she ensured his writings would become published worldwide and spread his reputation accordingly.