From The Wheeler Carpenter Johnson Kendall families:
"I'm hypothesizing that James was the father of John. The fact that the next generation all ended up in West Hanover, Lancaster, PA sounds pretty near the mark.
Killed by Indians
May be a Robert Johnson in here married to an Elizabeth Smiley
There were probably more than one set of Johnstons with names of John, James etc. So they could be related. But Lancelot is a pretty good differentiator.
There is a James Johnson on the 1670 hearth tax list in Drumroe, TYrone. There is a John Johnston in Tullykerken; a John Johnson in Cookstowne. a James Johnson in Listenderry' and a James Johnson in Caven.
There's a Lancelot Johnston b. 1748 Ardess, Fermanagh County, Ireland MD married Zerurah Rice. He's the SC doctor."