I got this from the library and posted about it on my blog, Not Rachel. The following description is excerpted from that post.

It takes place in Minerva Minnesota and tells the story of a mother and daughter, a mother and daughter, and mother and daughter: Barbara and Penny, Cora and Phoebe, and to a lesser but no less tragic degree, Hazel and Irene....

The part that saddens me is the way the town looks down on Barbara and Cora is pretty much the same as it would be now, only people may be less vocal about it. Progress, where art thou?

I'm sure someone could give this a more political literary analysis. I chose to take it as it is, not looking for hidden meanings or inferences. It's beautiful and a little haunting. I enjoyed it.