I would like to take this opportunity to share some information with you. I work directly with the Navy Historical Center in Washington D.C. Any possible research or study of a historic wreck must have prior approval of the NHC Archaeology Department. The NHC will pursue prosecution of any individual that disturb any naval site.
Also, I have conducted research in that area and have worked with a number of archaeologist that have conducted research in the Yazoo River. One specific wreck is believed to be the DeKalb... it is not. If you would like to discuss this further you may email me directly.