In "To Kill a Mockingbird," how does economic class divide the people in Maycomb into four different groups?

To answer this question appropriately, one must consider several different families:

1. The Finches. Not poor, not necessarily wealthy. Atticus tells the children that they are, in fact, poor, but they are not as destitute as --

2. The Cunninghams. A poor family that "had probably never seen three quarters together in (their) life," the Cunninghams are poor, but proud. They refuse to accept charity, and choose to get by in a meager fashion.

3. The Ewells. Both poor and uneducated, the Ewells keep their children out of school to do field-hand labor, poach game off others' property (despite the fact that the "rules are bent" for them), and exhibit other qualities of low living.

4. The African-American community at large: Calpurnia's people and Tom Robinson's people are just as financially strapped as everyone else in Maycomb County, AL, but their community helps one another out and supports each other in times of need. This is best exhibited in the "church" scene, where Calpurnia takes the children to her church.