My Robert & Sarah Sage, Sr., ran the Wilmington, N.C., to New Bern stage Line and Sage's Inn at which President Washington spend the night on his 1790's Southern Tour. My guess is Robert Sage was from Bristol, England? Robert was a brick mason; the Bristol Sages were tilers and plasterers. Both Sage families named daughters Hetty and Hestor.
I don't think the VA Blys and New England Blys are connected, but can't be sure since I haven't been able to take mine back to their origins. There is likely more than one Bly line in Mass. and NY as there seems to be no connection between some of them. I'm in Ohio for a family reunion and went to Firelands HS today looking for more info about my Huron County ancestors.