Region
Pennsylvania
18
Berks County
4
Chester County (Pa.)
3
Maryland
3
Philadelphia (Pa.)
3
Pottstown
3
Pottstown (Pa.)
3
Valley Forge
3
Valley Forge (Pa.)
3
Berks County (Pa.)
2
Chesapeake and Delaware Canal (Del. and Md.)
2
Elkton
2
Penn
2
Birdsborough (Berks County, Pa.)
1
Chester Co
1
Chester County
1
Delaware
1
Dublin
1
Dublin (Ireland)
1
Elkton (Md.)
1
Ireland
1
Montgomery County
1
Montgomery County (Pa.)
1
Naaman's Creek
1
Naaman's Creek (Del.)
1
Philadelphia
1