It would seem that "Napolean's Retreat" is the same as "Bonaparte's Retreat". Here is a not very good recording from Kentucky:
http://aca-dla.org/cgi-bin/showfile.exe?CISOROOT=/Berea&CISOPTR=1476
It comes from here:
http://aca-dla.org/cdm4/item_viewer.php?CISOROOT=/Berea&CISOPTR=1476&REC=17