During my recent visit, one of the display cases in the Stockyards Museum in Fort Worth, Texas, included several examples of the gory Civil War News trading cards published by Topps in 1962, featuring the artwork of the great Norman Saunders, whose immediate follow-up for Topps was Mars Attacks. Apparently no one's parents got bent out of shape by the Civil War News cards, since they were "educational"; Mars Attacks, of course, was a different story.
The museum exhibit, presumably put together by a Confederate sympathizer, refers to them as "War Between the States" cards. The museum's offerings are "Death Barges In," "Dynamite Victims," "Painful Death," "Rebel Power," "Massacre," "No Escape," "Savages Attack," "Victim of the War" and "Deadly Defense."
Here's Bob Heffner's fine site full of information about the Civil War News series, though the artwork itself is seen to better advantage at the Norman Saunders website, or here.