https://mises.org/daily/4108Since the article is way too long, here is the money quote-
"The legend of the "wild, wild West" lives on despite Robert Dykstra's finding that in five of the major cattle towns (Abilene, Ellsworth, Wichita, Dodge City, and Caldwell) for the years from 1870 to 1885, only 45 homicides were reported — an average of 1.5 per cattle-trading season.
In Abilene, supposedly one of the wildest of the cow towns, "nobody was killed in 1869 or 1870....Only two towns, Ellsworth in 1873 and Dodge City in 1876, ever had 5 killings in any one year."