John Dixon of Jefferson County Pennsylvania

Looking for parents of John Dixon born 1758 in Ireland. Married Sarah Ann Armstrong. They had: Jane, another daughter, John and William Dixon. John Dixon sr. died in 1834 in Jefferson County, Pa. He was the first school teacher in Jefferson County, was a constable, and one of the first members of the Methodist Church there. Am also seeking information on his wife, Sarah. She was born in 1768 and died in Jefferson County in 1860. Any information about this couple would be greatly appreciated.