Mary Cain, American journalist and politician (d. 1984)
Mary Dawson Cain (August 17, 1904 – May 6, 1984) was an American newspaper editor, political activist, and gubernatorial candidate in Mississippi. A Democrat, she advocated for conservative causes and is particularly remembered for her campaigns against the Social Security tax. She ran for Governor of Mississippi in 1951 and 1955, the first woman to do so.