Born April 9, 1964, in Washington Court House, OH; daughter of John Albert (a farmer) and Marilee Grace (a nurse; maiden name, Greshel) Peterson; married Doug Haddix (a newspaper editor), October 3, 1987; children: Meredith, Connor. Avocation: Travel. Education: Miami University, B.A. (English; summa cum laude), 1986. Religion: Presbyterian. Memberships: Society of Children's Book Writers and Illustrators, Phi Beta Kappa. Addresses: Agent--Tracey Adams, McIntoch & Otis, 353 Lexington Ave., New York, NY 10016.