According to first hand reports, nearly every block around the center of meat selling, packing and shipping had at one or two saloons, brothels, and gaming sites. It was a wild, and often lawless, center that cleverly maintained a position as a non-district for tax purposes in the early days. This, no doubt, invited in a certain shady clientele that gave it the wild, west patina long after the cowboys had nestled into study Ford trucks and Model T's.
Some links to view images and learn more:
OKC Net http://okc.net/2013/10/31/butchers/#comment-380798
Agnew Theater http://cinematreasures.org/theaters/17693
Redskin Theater http://cinematreasures.org/theaters/7830