The Ingenues, an all-girl band and vaudeville act, serenading the cows in the University of Wisconsin-Madison Dairy Barn in a scientific test of whether the cows would give more milk to the soothing strains of music, Madison, Wisconsin, August 1930. The tallest woman, second from left, is Dorothy Donohoe. Standing behind her is her sister Juel Donohoe, who is mostly obscured by the trombone player. (Photo by Angus B. McVicar/Wisconsin Historical Society/Getty Images)
