Should call themselves the Atlanta Shermans
As for the Crackers, Wiki has a charitable explanation - The term cracker is derived from the Gaelic craic, meaning entertaining conversation or boasting, with the latter sense still attested in the idiom "not all it's cracked up to be."[8] It was used in the 18th century to denote Irish and Scottish colonists of the Deep South backcountry. The Earl of Dartmouth had this to say in a 1766 correspondence: "I should explain to your Lordship what is meant by Crackers; a name they have got from being great boasters; they are a lawless set of rascals on the frontiers of Virginia, Maryland, the Carolinas, and Georgia, who often change their places of abode."[8]"