Sitting just to the east and casting a shadow on the Stockyards sat a group of buildings in extreme decay, the heart of what was once Niles City. Comprised of a little over one half square mile in size, it once had 508 inhabitants and was labelled the "richest little city in Texas" due to the Fort Worth Stockyards Company, The Swift & Armour Packing Company, and the Stockyard Exchange. 1911 it was valued at $12 million. When the Swift & Armour Packing Company was operating at it's peak, 4,000 men and women were reporting for work. In 1923 Niles City was annexed and became a part of Fort Worth.