I noticed your query on My Family. My 3 gr grandmother was Susan Catharine Penninger who lived in Augusta Co. VA, born before 1762 and died 1831 Pendleton Co. VA (now WV)
She married Henry Fleischer and children were: Conrad,
Elizabeth, Henry Jr, John, Benjamin, William A, Barbara and Peter. I don't have much information on the NC Penningers but I do have a Daniel Penninger in Rowan Co. NC in 1860 Census, living with John R Purrvance (sp ?) and there are 2 Penninger children. If you are able to trace your Penningers back to Augusta Co. VA, let me know.