For Americans who grew up in the 1930s, the phrase "before the war" calls up a distant time as remote from the way we live now as some foreign country. Those years of the Great Depression were lean ones for most Americans; jobs were scarce and nobody had any money. But all was not struggle and hardship; it was also a time of innocence, kindness, and generosity. It is this special time that Samuel Hynes, a distinguished scholar and wartime marine pilot,...