What is the setting for 'The Effect of Gamma Rays on Man-in-the-Moon Marigolds'?

Beatrice Hunsdorfer is a single mother who abuses her two daughters to make up for her own insecurity. She is an alcoholic and smokes. Her two daughters are really reflections of herself. Ruth longs for her mothers' attention and admiration but she never gets it so she turns to boys. She tries to impress everyone. She, like Beatrice is very concerned with her appearance and other peoples view of her. Tillie is curious, and resillient. Although she is repressed and frightened of her unpredictable mother and sister she is the most responsible one.