"Black Jack" Jackson.

The Blackjacks were one of the original outfits of Doomtown, and represented the outlaw faction in Gomorra. Their leader was "Black Jack" Jackson, a miner who had turned to crime after being driven from his claim by Sweetrock.

While their criminal activities were largely directed at Sweetrock, this did of course not stop them from attracting the attention of the Law Dogs and in the story for the Pine Box Edition the Jacks and the Dogs had a shootout which led to the death of Corky Hendricks. This caused Sheriff Nate Hunter to declare a personal vendetta against Jackson.

During the events of Revelations the surviving Blackjacks would enter an uneasy alliance with Austin Stoker who had convinced Jackson that the supernatural agenda of the Whatley family must be stopped.