Burnet, A. The book of the royal wedding, c1986 t.p. verso, etc. (Sarah Ferguson, b. 10-15-59, Duchess of York)
Blaise, 5/87 (York, Sarah Mountbatten-Windsor, Duchess of; ref. from Ferguson, Sarah, 1959- )
Seward, I. Fergie, 1992.
Dining with the Duchess, c1998 t.p. (Sarah, the Duchess of York)
Wikipedia WWW site, May 11, 2011 (Sarah, Duchess of York; b. Sarah Margaret Ferguson, Oct. 15, 1959; married to Prince Andrew, Duke of York, 1986-1996; style during marriage: Her Royal Highness The Princess Andrew Albert Christian Edward, Duchess of York, Countess of Inverness, Baroness Killyleagh; on Aug. 21, 1996, letters patent were issued which removed the style Her Royal Highness from divorced ex-wives of princes but allowed her to retain the title Duchess of York)
