Did your Mary Patterson marry a Joseph Campbell, and did she have a twin sister Hannah? If so, she is the sister of one of my gr-gr-grandfater Burton Patterson. He had a sister, Mary Patterson, b. 1818, married to Joseph Campbell, and had the following children: Alice (Hunter) Filmore Sarah (Flyte) Margaret (Fleeger) Bruce Wallace Melissa (Boggs) Frank Mary (Winton) Martha (Dempsey) Thomas My grandmother was a Patterson from Mercer County, Mary Pearl Patterson, married to Clifford Eugene Bortz, both buried in Carpenter Cemetery. She was the daughter of Joshua & Elizabeth (Stoner) Patterson. Joshua was the son of Burton & Delilah (Vaughn) Patterson.