Ellis Alfred Swearengen was an American pimp and entertainment entrepreneur who ran the Gem Theater, a notorious brothel, in Deadwood, South Dakota, for 22 years during the late 19th century.

Seth Bullock was a Canadian-American frontiersman, business proprietor, politician, sheriff, and U.S. Marshal. He was a prominent citizen in Deadwood, South Dakota, where he lived from 1876 until his death, operating a hardware store and later a large hotel, the Bullock Hotel.