The only info I have on Mary and John is that they were married on 9/12/1807 in Campbell Kentucky. This date does not jive with the approx birthdate of Mary. Although Mary had at least 7 other brothers and sisters, it is possible that the date is accurate, but I believe she was one of the first two children born of John Deem and Mary Dils. I have the rest of Mary's family if you like, please contact me. Also, Barbara Deem, Mary's sister, married William Chambers, probably the brother of John.