Region
Delaware River Valley (N.Y.-Del. and N.J.)
Delaware
10
New Sweden
9
United States
7
Delaware River Valley
5
Delaware Valley
2
Delaware, Vallée de la (N.Y.-Del. et N.J.)
2
New Netherlands
1
Pennsylvania
1
United States, Delaware
1
United States, Delaware, New Castle
1
United States, New Jersey
1
United States, New Jersey, Burlington
1
United States, Pennsylvania
1
United States, Pennsylvania, Delaware
1
United States, Pennsylvania, Philadelphia
1