did a google and found this site, gives a general discussion of activity around this area. Makes reference to a Bayou Beouf and a lake in the general area of Bayour Chemise. Hope it helps.

http://books.google.com/books?id=_eItAAAAIAAJ&pg=RA1-PA151&lpg=RA1-PA151&dq=%22bayou+chemise%22+louisiana&source=web&ots=HIarYgOQDb&sig=epDiNtfrnu5Q0OobtSztY9GfCj8#PRA1-PA152,M1

JIMT