Two "Barbara Allen" tunes were adopted for two Civil War songs, "Brother Green" and "The Battle of Stone River."

You can download each of them for about a dollar. Oscar Parks of Kentucky delivers "Stone River" in unforgettable high pitch.

Not very musical, but pretty emotive.

One reason that hospitals aren't named in war songs is because soldiers in war songs don't die in hospitals. They die on the battlefield, usually in the arms of a comrade.