Mrs. Fletcher and I would like to thank Liese Mayer and Nan Graham for their probing questions and excellent advice; Maria Massie and Sylvie Rabineau for their unflagging guidance and support; and Lyn Bond and Carolyn J. Davis for illuminating conversations that gave me momentum when I needed it the most. Nina and Luke Perrotta made the book better with their careful readings and thoughtful comments, and Mary Granfield helped in too many ways to list here.