Is there a famous woman possibly a single mother who rose from poverty to become a success?

Is there a famous woman possibly a single mother who rose from poverty to become a success?
I don't think she is a single mother, but Shania Twain answers the question.
J.K. Rowling, author of the acclaimed Harry Potter series rose out of poverty and became a multi-millionaire. She actually started writing down ideas on napkins in a local pub.