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- Pennsylvania--Butler County6
- Pennsylvania--Clarks Summit6
- Pennsylvania--Greensburg6
- Poughkeepsie, New York, United States6
- Palo Alto, California, United States5
- Papal States--Appropriations and expenditures5
- Papal States--History--1815-18705
- Perry County, Alabama5
- Portsmouth, New Hampshire, United States5
- Portugal5
- Prince William County (Va.)5
- Providence, Rhode Island, United States5
- Passaic, New Jersey, United States4
- Paterson, New Jersey, United States4
- Pennsylvania--Bloomsburg4
- Pennsylvania--Indiana4
- Person County (N.C.)4
- Perth Amboy, New Jersey, United States4
- Peru--Lima4
- Pisa (Italy)4