My gggrandmother is Mary Knopsnyer, b. 1816 or 1817 in PA, daughter of Godfrey Knopsnyer (b. 1788) and Nancy McGinnis (b. 1790). Mary married John Null. Their daughter, Hannah L. Null is my great grandmother. She was born 10/2/1843, Fayette, PA and died 1/12/1921, Oxford, WV, Richie County. Any other info you have would be appreciated.