B. F.,
One of the best investments you can make in researching Louisiana Confederate Units is Dr. Bergeron's book. I purchased the book several years ago, and I am sure you will find it WELL worth the purchase price.

I also have an ancestor, James E. Haddox, that was in the 6th La. Cavalry in Company B, and would be most interested in what your research may uncover. Good Luck in your project.
Sincerely,
Terry G. Scriber