What do we learn about the home life of the Ewell family in this chapter?

In Chapter Seventeen, Scout recollects mentally the way that the Ewells live, in a tiny hut made of planks and corrugated iron and flattened tin cans, surrounded by junk salvaged from the nearby dump. In the corner of the yard there are some geraniums planted in slop jars by Mayella, which appear to be the most cared for living things on the property. Scout concludes that the only thing separating Mr. Ewell from the black people around him, in terms of social standing, is that his skin is white.