Elaine, The Mary Hill mentioned is the Mother of Dorcas Tabitha Hosch.( Who married Carter Hill.)According to my records, Dorcas Tabitha Hosch was born ca 1810-1815, in Fairfield District, SC, and died after 1839 in Walton County, GA.
I find Dorcas Tabitha Hosch and Carter Hill's children listed as; (1.) William Henry Hill,b. 11 Aug. 1834;d. 8 Feb 1882, (2.) Mary Ann Hill-married Hardy Beddingfield of Chattooga Co., GA (3.) John Hill -died at age of one year. (4.) Francis Hill-died at age of one year.
After Dorcas Tabitha Hosch 's death, Carter Hill married Nancy Mays.Carter Hill and Nancy Mayes had ten children.
I have much more information on the Hill and Hosch families, and will gladly share. Millie