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Philadelphia Area Cultural Consortium
2
Philadelphia Convention and Tourist Bureau
1
Philadelphia Historical Commission
1
Philadelphia Rapid Transit Company
3
Philadelphia Ride the Ducks
1
Philadelphia Transportation Company
2
Proud, George D.
1
Queen Village Civic Association (Philadelphia, Pa.)
1
Royal Blue Line Company
2
Sarver, Patrick
1
Smith, Margaret Supplee
1
Smith, W. F.
1
Solem-Stull, Barbara, 1947-
1
Spruill, Matt
1
Thomas, George
1
United States. National Park Service
4
Vestermanis, Marg̓ers
1
Victorian Society in America. New England Chapter
1
Wall, Diana diZerega
1
Washington, George, 1732-1799
1
Webster, Richard J.
1
Wildlife Unlimited (Cape May, N.J.)
1