Region
20th century
1
Allegheny
5
Allegheny (Pittsburgh, Pa.)
4
Allegheny Co
4
Allegheny County
9
Allegheny County (Pa.)
17
Berks County (Pa.)
2
Canada
2
Chicago
5
Chicago (Ill.)
5
Cleveland
2
Cleveland (Ohio)
2
Congregational
1
Cumberland County (Pa.)
1
Europe, Eastern
1
États-Unis
2
Fort Duquesne
1
Fort Duquesne (Pa.)
1
Fort Duquesne (Penns.)
1
Fort Duquesne (Pittsburgh, Penns.)
1
George Westinghouse Memorial Bridge (Pittsburgh, Pa.)
1
Hill District (Pittsburgh, Pa.)
1
Illinois
5
India, South
1
Iowa
1
Lincoln Highway (Pa.)
1
Lycoming County (Pa.)
1
Mahoning County
2
Mahoning County (Ohio)
2
Manchester (Pittsburgh, Pa.)
1
New Jersey
2
North Side
4
North Side (Pittsburgh, Pa.)
4
Northumberland County (Pa.)
1
Nouvelle-France
1
Ohio
5
Ohio River
1
Park Ridge
2
Park Ridge (Ill.)
2
Penn
5
Pennsylvania
123
Pennsylvanie
5
Perth Amboy
2
Perth Amboy (N.J.)
2
Philadelphia
6
Philadelphia (Pa.)
4
Pittsburg
1
Pittsburgh
Pittsburgh (Pa.)
110
Pittsburgh (Pa.) in art
1
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