Region
Pennsylvania
232
Pittsburgh (Pa.)
145
United States
123
Pittsburgh
99
Allegheny County (Pa.)
18
Ohio River Valley
15
Penn
14
Philadelphia (Pa.)
14
Fort Duquesne (Pa.)
13
Pennsylvanie
13
Slovakia
13
Allegheny Co
10
États-Unis
10
Allegheny County
9
Fort Pitt (Pa.)
9
Pittsburgh Region
9
Pittsburgh Region (Pa.)
9
Philadelphia
6
Virginia
5
Czechoslovakia
4
Fort Duquesne
4
Homestead (Pa.)
4
North Side (Pittsburgh, Pa.)
4
Northwest, Old
4
Slovaquie
4
Allegheny River (Pa. and N.Y.)
3
Allegheny River Valley (Pa. and N.Y.)
3
Chester County (Pa.)
3
Fort Pitt
3
Huntingdon County (Pa.)
3
Maryland
3
Mississippi River Valley
3
Ohio River
3
Pitt, Fort
3
USA
3
Ukraine
3
Altoona (Pa.)
2
Armstrong County (Pa.)
2
Austria
2
Bratislava
2
Canada
2
Duquesne, Fort
2
Elmira (N.Y.)
2
Erie (Pa.)
2
Europe, Eastern
2
Fort Duquesne (Penns.)
2
Fort Duquesne (Pittsburgh, Penns.)
2
Germantown (Philadelphia, Pa.)
2
Greenwood Furnace State Park (Pa.)
2
Harpers Ferry (W. Va.)
2
more ...