English: Cropped image of 18-year-old bohemian artist and fencing expert Kathryn Marie "Kat" Mullin (1902–1994). Born in Chicago, Illinois, to Irish-American parents Michael "Mickie" Mullin and Kate Carter, Mullin became the muse and first wife of fellow artist and scenic designer Cleon Throckmorton (1897–1965) who operated The Krazy Kat art club and speakeasy in Washington, D.C., during the Jazz Age. A model, singer, sketch artist and costume designer, Mullin gained prominence for her radio and stage performances as a ukulele player with Harry Crandall's Saturday Nighters. For her stage performances, newspaper advertisements billed Mullin as "The Girl With the Million Dollar Legs." When not performing on stage or radio, Mullin gained renown as a national champion in women's saber fencing and gave public exhibitions which drew hundreds of spectators.

In December 1926, after four years of marriage, Kathryn Mullin sued Cleon Throckmorton for divorce upon catching him in a sexual encounter with an unidentified woman—possibly screen actress Juliet Brenon (1895–1979)—in their Greenwich Village apartment in Manhattan. Mullin's friend, African-American stage actress Blanche Dunn, served as a witness on her behalf in the divorce suit. Throckmorton did not contest the divorce, and Mullin did not seek alimony. After her divorce from Throckmorton, Mullin married right-wing political journalist John Parsons O'Donnell in a civil ceremony on May 6, 1927, but they divorced soon after in 1929. In her later years, Mullin married again, returned to the Midwest, and became a speech specialist for children. She died in March 1994 at age 91 in South Pasadena, California.