Who is Mrs. Hill from Meridian: A Novel and what is their importance?

Meridian's mother was a schoolteacher, and she was not prepared for the loss of identity that would come with having a child. Silently, Mrs. Hill blames her children for the loss of her happiness. She doesn't think about politics or see the larger picture of the world around her. She is devote and believes in God and the church, but she doesn't have a well-formed morality. She simply believes in a simplistic, conventional idea of "good." She does not believe in black people voting or in ending segregation, and she is horrified when her daughter wants to give up her son and go to college.