Go to almost any library and they should have a copy of "The Songs of the Civil War" by Irwin Silber. This is probably the most complete collection of CW songs and their variations and parodies. This book is also available from Dover Books for about $15. Everyone should have a copy.
Now, on the same subject, Columbia records released a CD in '92 I think. Tennessee Ernie Ford sings Songs of the Civil War. They weren't exactly arranged like a guy sitting on a stump with a cigar box fiddle but there was some good material on it never the less. Columbia no longer has it. I have checked the usual sources, (Amazon, CD Now, etc.). Does anyone know where it may be available? Thanky,