I'm looking for the same Martha. I am a descendant of her daughter Phebe Ann Mooney m. Joshua Dye. Phebe Ann would be James Harrison's brother. I have many documents on Martha Mooney as head of the household for her children after James' death. But I cannot seem to find any solid documentation on her maiden name, whether it is Irwin or Hyatt. Do you have this info? I can give you the names of Martha's and James's other children