Try these sites:

Alabama Slave Project
http://www.dnaco.net/~diva1/cemeteryrecords.html
Red House, Big House (Rigby), Oakcha and Bethlehem cemetery listings

Choctaw County AlGenweb
http://www.rootsweb.com/~alchocta/index.htm

And this book:

African-American Cemeteries and their History of Choctaw County, Alabama Vol.1. by Nova Law (1992)

This book provides history of churches and thier associated cemeteries in Choctaw, County, Alabama. Over 800 names are indexed and pictures of churches and cemeteries are included.

Ordering info available on the Choctaw County ALGenWeb site http://www.rootsweb.com/~alchocta/books.html