In the 1940's 50's and 60's in the South the War Against Northern Agression was still very much being fought and NOT just over segration. That is what made Granny's stance on the Beverly Hillbillies so funny. Why even the premice of the entire show was what? Backwoods, barefoot, dumb, dirt poor southerners from the hills of Arkansas, Tennessee and Missouri who accidently strike it rich and move to "Sophicated, Modern, Uptown" L. A. It was always a struggle who had the most common sence of that bunch of charactors and usually it was JED and the Clampetts themselves.
Then you have "Green Acres" the New York Lawyer who wanted to become a farmer. These were satire comedies which was making commentary on America itself.
Johnny Yuma was a displaced Confederate who went about correcting injustice. The only thing about Johnny Yuma, "The Rebel", that was "Confederate" in the show was the Kepi (a very rare item in the real Confederacy) he wore, and the name of the show. And the connection becomes even more strained when you concider that the breechloading double barrel sawed-off shotgun he carries wasn't around until the 1880's. BUT the idea of a "rebel", someone who had fought AGAINST the United States, being the hero and fighting injustice was unusual. Or was it?