Do you know if your Thomas Johnston of Cecil Co. MD had a brother named Wm Johnston (who married Isbella Hampton) he removed to Frederick Co. VA ?
Another researcher Monte Castleman has placed information about Wm. & Isabella (Hampton) Johnston on Genforum--Johnston Family Genealogy Forum.
I would be interested in your input about this matter.
I have the birth date of George Johnston as 24 Jun 1730, son of Thomas & Milliscent Johnston. And I have the birth dates of five of his siblings. He and his brother Daniel removed from MD to Frederick Co. VA.