Isadora Duncan (May 27, 1877 - September 14, 1927). Image from America's Historical Newspapers
Isadora Duncan was dance-struck as a young child in San Francisco. By the time she was six, she was teaching neighborhood children how to move like ocean waves. The strict rules of ballet and conventions of the music hall never held her interest. Indeed, throughout her life as a dancer and teacher, she rebelled against the forms and costumes of traditional dance, preferring movements based on nature and emotion. In 1895, still a teenager, she moved to Chicago and joined the Augustin Daly Company, touring from the Midwest to New York to London. While in London, she also danced solo performances at society events.
Samuel Clemens checked off many of these items: He was a sailor, if on the Mississippi. He went west to make his fortune. He had served briefly in the Civil War. He was a journalist and popular lecturer. He reinvented himself as the author Mark Twain. He became an entrepreneur, and he lost a fortune.