Daniel A. DeCarlo's memoir, "Watch Out for Those French Girls," is titled from his mother's words of caution. It was the last thing she said to him as he innocently embarked on a fulfilling career of unexpected adventures as a teacher and administrator in the overseas school system for U.S. military dependents. A chance meeting with a lovely young Frenchwoman named Genevieve proved to be remarkably good fortune. Growing up during the Great Depression...