Check out Bob Halsey's page: http://members.aol.com/rehfla/elihalsey/texas.htm His listing for Texas Christian Cemetery has Listings for both John E. and Rosetta Dugan. There are also Burns listings that are the approximate age of her parents. He also has marriage listings in his lookups but I didn't see a reference in the marriage listings (1870-1879) for either bride or groom. Good luck!