Comment on Alexander Montgomery 1740-1840 by Zara Niemeyer

Hello Mike & Kay,
I have read several posts over the years, and am in hopes of finding more information on my 5 gr grandfather Michael Montgomery who died about 1777 in Washington County, VA. I am trying to find where he may have came from before arriving in Washington County, VA. I have seen that he may have come from the Mt. Joy area of Lancaster County, PA or at least his father.. Would appreciate any information you can give me on this side of the family.
All the best,
Zara