Carol: My grandfather Patrick Martin McGrath was born in Clifden in 1866 and married a Molly Lynch. I thought the John you are looking for could be the older brother of Molly. Since the parents names are John and Margaret it would make sense that Molly and John were named after them. Molly would be a possible nickname for Margaret. Please let me know what you think of this "theory". Hope to hear from you soon. Kathy