States: Texas: Cherokee
Check Cherokee Co, TX GenWeb site, some GenWeb counties are putting their cemeteries online. If not online, post your query, plus ask if anyone knows if a collection of material, or a book on local cemeteries has been done, and will they check for your family.
You might want to do the same for Smith Co, TX, too.
I found births of 2 sons for Mary & John, 1 in Angelina Co, and the other in Smith Co. You might want to be aware of spelling of their names on one record. Mary Sue Jordon(sic), and John Edwin Hallmark. That shows Ed was probably short for Edwin, and gives you a little more to work with. Plus, a variation in misspellings of Mary's maiden name.