According to Brunnings' Folk Song Index (Garland) and Ferguson's Song Finder (Greenwood), "Cavaliers of Dixie" is also in Henry S. Humphreys, Songs of Confederacy and Willard Allison Heaps, The Singing Sixties: The Spirit of Civil War Days Drawn from the Music of the Times (University of Oklahoma Press, 1960; words only), neither of which I've seen.
~Masato