Region
Maryland
Virginia
6
Delaware
4
Pennsylvania
3
United States
3
America
2
Chesapeake Bay (Md. and Va.)
2
Delaware River Valley
2
Delaware River Valley (N.Y.-Del. and N.J.)
2
États-Unis
2
New Jersey
2
New Sweden
2
Pennsylvanie
2
Sweden
2
Virginie
2
Washington (D.C.)
2
Western Hemisphere
2
Delaware, Vallée de la (N.Y.-Del. et N.J.)
1
Eastern Shore (Md. and Va.)
1
États du Moyen-Atlantique (États-Unis)
1
Middle Atlantic States
1
Ohio River Valley
1
Ohio, Vallée de l'
1
United States, Maryland
1
United States, Virginia
1