The History & Genealogy Dept is located at 704 Government St, Mobile AL 36602, just across the street from the main Mobile Public Library. The librarians are very helpful. Tell them you want the death indexes of Mobile. They also have some microfiche records of death certificates in the time you are looking for. If you can't get downtown, they have a website with an email address or you can call them at 251-208-7093.