Grand Opening by Jon Hassler (1987)

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This is a lovely, character-rich depiction of small-town life during World War II. A family pursues their dream of moving to a small town in Minnesota to open a grocery store.  Wonderful characters and relationships, and challenging situations.  Complicated and lovely.  For me, Hassler is the male Maeve Binchy, with wonderfully written 'good' characters and just as well-drawn 'bad' characters, who ultimately end up with some comeuppance for their sins.