Yep. Massey-1436 certainly seems to be the correct one. And--at least on WikiTree--200 years of descendants in that line have unsourced profiles. While there is nothing stating so on WikiTree's "confirmed with DNA" help pages, the process really has to start with the traditional paper trail. Without a well-researched paper trail, there's no way to tell when sets of yDNA results actually converge to a common ancestor: it could be three generations ago or 30. And in this case, with an MRCA born this long ago (1629), the DNA evidence has to hinge on yDNA only; autosomal DNA is not a factor that many generations back.