Oprah Winfrey's big family secret? The talk-show queen announced on 'The Oprah Winfrey Show' Monday that she has discovered a half-sister, named Patricia, who was secretly given up for adoption in 1963. Patricia, who lives in Milwaukee, said that she discovered Oprah was her half-sister while searching for her birth mother in 2007. She spent the next three years trying to contact Winfrey with the news and finally reached her late last year. They met on Thanksgiving Day.