Hetty Green: Wonders of world's most stingy person   Hetty Green is considered the most stingy woman in history, her wealth is estimated at more than $2.3 billion. Hetty Greene was born in America in 1835. She was the only daughter of a wealthy businessman. She inherited from her father a fortune estimated at $7.5 million. When she was twenty-one years old, she moved to live in New York to invest her money in Wall Street and was called the Wicked Witch of Wall Street. She married a millionaire like herself, but still...