This list is not up to date, but it’s a start. Like all my genealogical data, it’s guaranteed 80% accurate.
I made this chart before deciding to work at the great-grandparent level. Instead, it reads at the grandparent level, incorporating all four American grandparents: Josephs (which on the rest of this blog is divided into Josephs and Wilson lines); Pearson (elsewhere divided into Pearson and Stott lines); Paige (which will in future be divided into Paige and Franchot lines); and Vail (to be divided into Vail and Warren lines). Someday I will fix this. But not now.