I have researched my McNabb family back to James McNabb born in 1625 marries Sarah Roper. He was born in Glen Dachart Partshire Scotland. He had a son William who was born in Monroe Pa Scotland. From William came a son named William. He married Betty Aiken. When she died William came to the USA with his children. They lived in and around Tennessee. Their line of McNabbs branched out south and some settled in Louisiana. A small settlement of them in Livingston Parish in Louisiana.