She later married Paramount Pictures executive Charles Eyton on June 2, 1916, in Riverside, California. The couple met approximately ten years earlier in Salt Lake City, Utah. Eyton went there to look over a new play. While there he met Kathlyn, who was a member of the Willard Mack stock company. He and Williams had been engaged earlier but a lover's quarrel broke them up. Eyton was an owner of the Oliver Morosco Photoplay Company. On February 25, 1922, her son, Victor, died suddenly at the age of 16 from complications of influenza at Good Samaritan Hospital in Los Angeles, and his remains were cremated. Her son was previously enrolled at Harvard Military Academy before he became a student at Hollywood High School. The Eytons eventually divorced in 1931.