Never heard of it. Almost every town in Texas claims to be the capital of something. Usually some obscure festival or some such goes along with it.
Stephenville, TX claims to be the cowboy capital of the world. Thats a bold statement for a piss-ant town that is actually in dairy country. There is a college there with a good rodeo team but thats about it.
As far as hogs go, the hill country and south Texas had hogs long before the dickens area ever did.