English: Cropped image of 18-year-old bohemian artist and fencing champion 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 owned The Krazy Kat speakeasy in Washington, D.C., during the Jazz Age. A model, singer, sketch artist and costume designer, Kathryn Mullin was widely known for her radio and stage performances as a ukulele player with Harry Crandall's Saturday Nighters. For her stage performances, she was billed as "The Girl With the Million Dollar Legs."

When not performing on stage or radio, Mullin was a renowned national champion in women's saber fencing and gave public exhibitions which drew hundreds of spectators. In December 1926, after four years of marriage, Mullin sued Throckmorton for divorce upon catching him in an extramarital affair with an unidentified woman—possibly screen actress Juliet Brenon (1895–1979)—in their Greenwich Village apartment in Manhattan. Kathryn'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 Kathryn did not seek alimony. After her divorce from Throckmorton, Kathryn married political journalist John Parsons O'Donnell in a civil ceremony on May 6, 1927, but they divorced soonafter in 1929.