This document discusses the history of Mexican immigration to Illinois in the early 20th century. It summarizes that many Mexicans came to work on railroads after events like the Mexican Revolution and World War I reduced the American workforce. They often lived in boxcar communities with their families due to lack of housing. The document presents stories of individual Mexican families who immigrated to Illinois towns like Eola and Bloomington to work on railroads. It stresses the urgency of conducting oral histories to preserve the stories of these families before they are lost to time.