wichita.edu
…such as Chihuahua or Durango. Many others, however, came from central part of Mexico, from places such as Aguascalientes, Michoacan, Jalisco, and San Luis Potosí. Needing a labor force to construct and improve their lines, the railroads openly recruited Mexican workers, promising transportation and housing. The facilities provided, however, were often little…
https://www.wichita.edu/academics/fairmount_las/history/local/NorthMarket/Beginnings.php