As you probably know, the name was spelled Robertson also.Robert Robinson was the son of John Robinson/Robertson and Sarah Evans, and Robert was a brother of my ancestor Sarah Robinson/Robertson Short.John Robinson was the son of Nicholas Robertson and Sarah Marks, daughter of Matthew Marks.
Rev. Allen P. Robinson, born 1765, was a first cousin of my mother's ancestor, Jacob Short. Allen had quite a lot of interaction in Greenville, S.C., with Margaret Robertson/Robinson Fendley, born 1762, but we have been unable to find documentary proof that she was another of his sisters.Margaret and her husband Moses Fendley were members of Allen's (very small) church, and Allen's second wife Catherine Whitmire was connected to the Fendleys several ways.In Fendley/Findley family records, Margaret's name is spelled both Robinson and Robertson. Margaret was my father's ancestor.