From Ammoland:

The ordinance, in this case at least, proved to be almost entirely ineffective. As recounted in the court decision, Sheriff Behan had “demanded of the Clantons and McLaurys that they give up their arms, and … they ‘demurred,’ as he said, and did not do it.”

A brief filed by historians and legal scholars explains that nineteenth-century prohibitions like the one in Tombstone were “unusual” and imposed “in response to transitory conditions.” Any “supposed distinction between populated and unpopulated areas, offered to justify heavy restrictions on carrying in the District, is not supported by the existence of handgun carry bans in a handful of mostly small towns in the Wild West, when nearly all major cities had no such laws.”