According to http://www.nortonfamily.net/sc-marion-horry-norton.htm
William Norton, II and this James Norton are brothers, not father and son, respectively. Father of both is William Norton I and "the Widow Miller" AKA Famariah Atkinson Miller. The father of William Norton I is Captain John Norton, II and Mary Sawyer.
Y-DNA chart is included in link above from Norton Family Association. if you scroll down through the document and notes in the chart. Sources noted include:
1. 300 Years Along The Pasquotank, Jessie F. Pugh, 1958;
2. A Genealogical Research Report by R. L. Guffin;
3. A History Of Marion County, South Carolina by W. W. Sellers;
4. Alabama and Mississippi State Census and Agricultural Reports;
5. Ancestry.com Y-DNA reports;
6. Treasie Bates;
7. Berkeley Parish Register (BPR);
8. Bessie Evans McAden family history notes and research;
9. Brenda Brophy;
10. Bettie Grace Bounds family records and research;
11. Camden's Life Of Queen Elizabeth;
12. Campbell Web site;
13. Carmichael web site and research notes;
14. Carolyn Coleman Riley;
15. Collins Peerage of England, Vol. 1-9;
16. Colonial Records of North Carolina;
17. Early Settlers of Barbour County, Alabama;
18. Emogene Norton Taylor;
19. Ethelbert Brinkley Norton lV;
20. Family Tree Y-DNA reports;
21. Frances Whitfield Norton;
22. Hathaway;
23. Hotten;
24. House of Hughes & Dunahoe and their many relatives byRebecca Hughes Dunahoe;
25. Howard Binning Norton;
26. James Robert Norton;
27. Joseph Loper family records and research;
28. Julia Norton family history notes and research;
29. Kimber's Baronetage (Boynton);
30. Land Deeds Abstracts;
31. Lucy Mae Daniels Martin;
32. Lyphus Don Norton;
33. Mary Alice Norton Taunton Patla family notes;
34. Mildred Norton Loper;
35. My Neck of the Woods by J. D. Lewis;
36. Nettie M. Norton Jones family records and research;
37. Norton Family History by William C. Stapleton, Jr. and research notes;
38. Nugent;
39. Registered Wills;
40. Sally Randol-Hardy;
41. Robert Louis Norton;
42. Scott Norton and his Web Site;
43. Semion Daniels;
44. Several Cemetery Records;
45. The First Salute by Barbara W. Tuchman;
46. The Norton Family Association, % Edward P. Kemp and Wise Dale Stewart – Research information;
47. Tommy Campbell;
48. U. S. Census records;
49. Virginia Historical Society;
50. Virginia Magazine of History and Biography;
51. Visitation of Yorkshire, College of Arms;
52. White Doe of Rylestone (The Fate of the Nortons);
53. William Benjamin Norton, Jr. family history notes and research;
54. William Lewis of Horry County, South Carolina by Mary Lewis Stevenson;
55. The World Book Encyclopedia.
Would like for any to review and note if any objections to sorting and "fixing" profiles to reflect this information. I am a direct descendent of both Norton Brothers and would like it straight in my tree. More work needs to be done. I think a Gedccom Match wrecked havoc at some time. Thanks for consideration and attention. Susanne