|Ray Gurganus||9-8-2021 08:44 PM|
FYI, I'm cleaning up Delaware and Chester County,, Pennsylvania places. Prior to September 26, 1789, Delaware County was part of Chester County. But the good news is that you don't need to know that. Just enter all cities, towns, and townships relative to the present-day county, and the display will automatically switch based on the date.
If you see something referenced in other sources as Chester County, and you don't know which county that should be in today's geography, look it up.