CAJUN ACCORDION DISCUSSION GROUP
La Musique Creole - Bois Sec / Canray Fontenot track 11. Can be sampled on itunes or google play This is about as true as it gets IMO
Not sure if its the same you tune you are looking for but Amede Ardoin recorded a waltz labeled Oberlin. You can find it on the "I'm Never Coming Back" album.
Cory's Oberlin & Bois Sec's Oberlin are the same. Amedee's Oberlin is different. JB
Cory got his version from Bois Sec, but he sure plays it differently