Region
Pennsylvania
Ohio
87
Ohio River Valley
28
Philadelphia
13
West Virginia
13
United States
11
Pittsburgh
8
Maryland
7
Ohio River
6
Virginia
5
Allegheny County (Pa.)
4
Germany
4
New York (State)
4
Northwest, Old
4
Ohio, Vallée de l'
4
Penn
4
Pittsburgh (Pa.)
4
Washington Co
4
Allegheny River (Pa. and N.Y.)
3
Belmont County
3
Cleveland
3
Great Britain
3
Kentucky
3
Monongahela River (W. Va. and Pa.)
3
New Jersey
3
Ohio Co
3
Pennsylvanie
3
Philadelphia (Pa.)
3
Westmoreland County (Pa.)
3
Allegheny
2
Allegheny County
2
Canada
2
Cleveland (Ohio)
2
Cuyahoga County
2
Cuyahoga County (Ohio)
2
Dauphin County
2
Dauphin County (Pa.)
2
Fayette County
2
Fayette County (Pa.)
2
Harrison Co
2
Illinois
2
Indiana
2
Iowa
2
Jefferson Co
2
Mahoning County
2
Mahoning County (Ohio)
2
Middletown (Dauphin County)
2
Middletown (Dauphin County, Pa.)
2
Missouri
2
New York
2
more ...