Robert lived in Chester County 1800-1830 according to census records.He was born in Ireland in 1762 and arrived in USA about 1790. He possibly married in SC to a woman last name McFadden. He had six children born in SC: Hugh Harshey Sanderson, Alex Sanderson, Arabella Sanderson, Polly Sanderson, Rosanna Sanderson and Jane Sanderson. I am attempting to find his wife's name or any other information regarding this family.