Who was Mary Livingstone?

Mary Livingstone (born Sadie Marcowitz, later known as Sadye Marks; June 25, 1905 – June 30, 1983), was an American radio comedian and actress. She was the wife and radio partner of comedy great Jack Benny.

Enlisted almost entirely by accident to perform on her husband's popular program, she proved a talented comedian. But she also proved one of the rare performers to experience severe stage fright years after her career was established—so much so that she retired from show business completely, after two decades in the public eye, almost three decades before her death and at the height of her husband and partner's fame.