The book by Edwina Snyder does have the information on your ggrandmother Margaret Elizabeth Edwards. For more information on her book you can contact her at phone number (225) 756-8578. Another interesting book on the EDWARDS family is Sunshine and Shadow: A History of the Goodbee and Edwards Families in Southeast Louisiana, by Shirley M. Cowart and Glenn C. Cowart. They live in Madisonville, Louisiana and I believe that their phone number is (504) 892-5840.