Other
Pennsylvania
Philadelphia
154
Philadelphia (Pa.)
63
Pennsylvanie
28
United States
27
Penn
23
Pittsburgh
23
Philadelphie
14
Pittsburgh (Pa.)
13
États-Unis
7
France
4
Merion
4
Harrisburg
3
New Jersey
3
Philadelphie (Penns.)
3
Puerto Rico
3
20th century
2
Alexandria
2
Alexandria (Pa.)
2
Bucks County
2
Harrisburg (Pa.)
2
Hill District (Pittsburgh, Pa.)
2
New Castle
2
New Hope Region
2
Philadelphia Region
2
Pittsburgh Metropolitan Area
2
Pittsburgh Metropolitan Area (Pa.)
2
Porto Rico
2
Roxborough
2
Scranton
2
Society Hill
2
Southwest Philadelphia (Philadelphia, Pa.)
2
Adams Co
1
Allemagne
1
America
1
Amérique
1
Baltimore
1
Benjamin Franklin Parkway (Philadelphia, Pa.)
1
Bethlehem Steel Company
1
Butler County
1
Butler County (Pa.)
1
Canada
1
Clarion County
1
Clarion County (Pa.)
1
Cornwall
1
Crop yields
1
Düsseldorf
1
Düsseldorf (Germany)
1
Eagles Mere
1
Europe, Eastern
1
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