 The first Mexican community in Richmond started in the lower part of the Iron Triangle at the bottom of Macdonald Ave below 5th St and at A St and B St in the 1920s.Atchison, Topeka and Santa Fe Railway began bringing Mexican workers to work in the Santa Fe Rail Yard in Richmond.The Railroad also built a Housing Project for Mexican railroad workers called Section housing which was located on Macdonald Avenue and Gerrard Blvd.