Region
Caerwys (Wales)
1
Delaware River Valley
1
Delaware River Valley (N.Y.-Del. and N.J.)
1
Delaware, Vallée de la (N.Y.-Del. et N.J.)
1
Pennsylvania
1
Philadelphia
1
Philadelphia (Pa.)
1
United States
1
United States, Delaware, New Castle
1
United States, New Jersey, Burlington
1
United States, Pennsylvania, Delaware
1
United States, Pennsylvania, Philadelphia
1