Region
20th century
1
Alexandria (Va.)
1
Allegheny
5
Allegheny (Pittsburgh, Pa.)
9
Allegheny City (Pa.)
1
Allegheny Co
4
Allegheny County
12
Allegheny County (Pa.)
32
Allegheny River (Pa. and N.Y.)
1
Allegheny River Valley (Pa. and N.Y.)
1
Allegheny, Pa
1
Baltimore (Md.)
1
Berks County (Pa.)
2
Boston (Ma.)
1
Buffalo (N.Y.)
1
Canada
2
Chicago
5
Chicago (Ill.)
5
Cleveland
2
Cleveland (Ohio)
2
Congregational
1
Cumberland County (Pa.)
1
Davis Island Dam (Pa.)
1
East Liberty (Pittsburgh, Pa.)
1
Europe, Eastern
1
États-Unis
2
Fairmount Park (Philadelphia, Pa.)
1
Farrell (Pa.)
1
Fort Duquesne
1
Fort Duquesne (Pa.)
10
Fort Duquesne (Penns.)
1
Fort Duquesne (Pittsburgh, Penns.)
1
Fort Pitt
2
Fort Pitt (Pa.)
8
George Westinghouse Memorial Bridge (Pittsburgh, Pa.)
1
Germany
2
Hampton (Allegheny County, Pa.)
1
Hampton (Pa. : Township)
1
Hampton (Township)
1
Hill District (Pittsburgh, Pa.)
1
Homestead (Pa.)
1
Homewood-Brushton (Pittsburgh, Pa.)
1
Houston (Tex.)
1
Illinois
5
India, South
1
Indiana County (Pa.)
1
Iowa
1
Ireland
1
Israel
1
Knoxville (Allegheny County, Pa.)
1
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