Kathleen Lockhart (9 August 1894 — 18 February 1978) was an English-born stage actress. She was born Kathleen Arthur in Southsea, Hampshire. An actress and musician, Kathleen got her start on the stage in Britain and then emigrated to the United States in 1924, upon her marriage to Canadian-born actor Gene Lockhart. She continued to appear on stage and in Hollywood films for almost forty years. Kathleen and her husband, Gene, occasionally starred opposite each other, most notably as Mr.