I am a descendent of William A. Munnell, who was probably born in S. Strabane Twp. Wash. Co. PA, but moved to Mercer Co. PA. he married a Jane Parshal (or Parshall). Their daughter Mary was my ggrandmother. I am just beginning my search so am not sure who William's parents were though it could be either Samuel Munnell (1785-1880)and Nancy McQuiston or James Munnell and Martha Elder. Do you have any clues?