how does the stock market crash of,1929 relate to Roll of Thunder Hear My Cry?

Discrimination and segregation continued throughout the 1930s, during which Roll of Thunder, Hear My Cry takes place. The Great Depression began in 1929, when the stock market crashed. A forty-percent drop in the price of farm products and resulting foreclosures on many farms in the early 1920s contributed to the crash. Between 1929 and 1933, the years in which the novel is set, the price of farm goods fell a further fifty percent. In 1933, the unemployment rate was twenty-five percent (thirteen million people). Mr.Morrison, having lost his job on the railroad, faced the far from uncommon troubles of the unemployed. Because of the lack of jobs, those who had jobs were often forced to accept undesirable working conditions in order to remain employed. In the novel, Papa works a less than ideal job, laboring months of the year away from his family on the railroad in Lousiana.