For her daughter, see Susan Alice BuffettSusan Thompson Buffett (June 15, 1932 – July 29, 2004), the first wife of investor Warren Buffett, was active in civil rights, abortion rights and population control causes. She was a director of Berkshire Hathaway, owning 2.2 percent (worth US$3 billion in 2004) of the company at the time of her death. She was the 153rd richest person in the world.