Liland, I found a website that had Civil War Songs and had the lyrics to "The Cruel War is Raging," a song quite different from the one referred to above (one version by Peter, Paul, and Mary). I thought I had posted two links to the song and Civil War song websites, but it looks like it did not work, and I cannot, for the life of me find the sites again. The search engines I try (e.g., "google" and "about.com") keep coming up with everything about the Civil War and about "songs" except that song or the pages I found before.
Anyway, it is a different song. Maybe someone else will find it before I do.
Genie