To Kill a Mockingbird: Class Stucture of Maycomb County The rigid class structure and social stratification of Maycomb County had a profound effect on the events in the novel To Kill a Mockingbird by Harper Lee. The impact of this class structure was especially evident in the trial of Tom Robins on, a Maycomb Negro. The extreme prejudice of the town eventually led to the unjust conviction of Robinson for a crime he did not commit. The society of Maycomb County had a definite structure. This structure contained four classes. The first and upper class consisted of white collar Caucasians who were considered "rich" in the post-dep