Margaret was born on December 25th, 1789 in , , PA. She died at the age of 77 on January 14th, 1867 in Connellsville, Fayette, PA.
General Notes
I have a family journal written by a descendant of Thomas and Margaret Moore Gregg that states that Margaret Moore's parents were Dr. William MOORE and Susan (or Susanna) DUNBAR MOORE. I have located a William Moore on the 1790 census on Ancestry.com (I don't know whether he is related to my family or not).