Interesting thread. I, too, play banjo and happen to be a History buff. My grandfather (long passed) had an uncle that died in Andersonville. Actually both he and one of his cousins died there. (We know their markers). Ironically, and believe it or not, he played banjo. The banjo, somehow, probably through his friends in the regiment who survived, made it home here and is now in the possession of one of my cousins. It has been passed down through the family now on that side for a long, long time. I actually got to hold it once. It was very heavy, short (what I would almost call a Tenor Banjo)and, as you would expect, had had the daylights beat out of it. I caught onto that song some years ago in the movie and have always wondered the same things. Sometimes in those movies the actor isn't even the one singing the song. My own quest in regards to that song in the movie is to try and find out WHO actually sang it for the movie. It may very well have been the actor himself. If you can find that, many questions may be answered. Great subject. I wish everyone luck. Thanks.