Thanks, Old Hippie, but no. I would like to know where the stanza originated. It may be more recent than Civil War era. (Most versions I have seen use Lee's nickname 'Bobby Lee.'
The song does not appear in Allan's "Lone Star Ballads" (1874) except as a tune for "Song of the Texas Rangers" (about the Eighth Texas Cavalry or 'Terry's Texas Rangers,' not the law enforcement Rangers).