The document discusses the impact of the Great Depression on Mexican communities in the United States. It began with the stock market crash in October 1929, which caused widespread job losses among both Mexicans and Americans. Mexican populations in New Mexico were particularly affected. Farms had to sell machinery. Racism was high in the 1920s, with anti-Mexican sentiment wanting a "pure" America, but Mexican populations continued to grow, especially among railroad workers traveling from Texas to Chicago and living in Mexican neighborhoods called barrios.