Harriet Elizabeth MacGibbon[4][5] (October 5, 1905[6][5] – February 8, 1987)[2] was an American film, stage and television actress best known for her role as the insufferably snobbish, "blue-blooded Bostonian" Mrs. Margaret Drysdale in the sitcom The Beverly Hillbillies.

In Louisville, Kentucky, she acted with Wilton Lackaye, Edmund Breese, William Faversham, Tom Wise and Nance O'Neil.

Credits included Ned McCobb's Daughter, The Front Page, and a "transcontinental tour" of Max Marcin's The Big Fight (in which she starred opposite former world heavyweight champion Jack Dempsey), beginning in Boston, taking in New Haven and Hartford, Connecticut, and ending at Caine's storehouse in Los Angeles.

She was cast in five theatrical movies, including Four Horsemen of the Apocalypse (1962), which was directed by Vincente Minnelli and starred Glenn Ford, Ingrid Thulin, Charles Boyer, and Lee J.

She was cremated, and her ashes interred in niche 61046 in the Columbarium of Remembrance at Forest Lawn Memorial Park (Hollywood Hills), Los Angeles, California.