Sometimes she wished she could stick up a large notice saying: "FOUR CHILDREN ARE NOT TOO MANY" . . . Raising four young children on her own in the years of postwar rationing, widowed Dinah tends to be the subject of sympathetic murmurs. But though she has little money, is perpetually tired, and remains haunted by unresolved issues from her troubled marriage, Dinah rejects all offers of pity. When her twin brother Dan returns from the military,...