The book,"Mayflower Families Through Five Generations", Volume 11 Part 2 (Edward Doty) gives the following: 1. Edward Doty 2. Their 4th child, Samuel Doty b. Piscataway, NJ 27 Aug 1679 married Elizabeth Hull. 3. 1st child Samuel Doty b. Piscataway, NJ 12 Dec 1700 married Abigail Springer. 4 Their 6th child Rachel Doty bc1745 prob. Sommerset Co. NJ married Isaac Sutton. 5. Their 3rd child Isaac Sutton, Jr. b 1752 said to have married Mary Elizabeth Carr (divorced 1813)
If you can prove that Rachel Sutton was the daughter of Isaac Sutton, Jr. and Mary Elizabeth Carr you can establish descendancy from Edward Doty of the Mayflower. You can find the above mentioned book on the Mayflower Web Site.