Salsbury, Lehigh County, Pennsylvania.

1876

Davis, F.A.

1:32k

Outline Map of Montgomery County, Pennsylvania.

1871

Hopkins, G.M.

1:25k

The historic and scenic Brandywine watershed

1958

Brandywine Valley Association

Delaware, Montgomery, Bucks counties.

1872

Gray, Ormando Willis; Walling, H. F.

1:300k

Upper Saucon, Lehigh County, Pennsylvania.

1876

Davis, F.A.

1:32k

Plate J. Southeast Pennsylvania.

1871

Hopkins, G.M.

Plate E. Central Pennsylvania.

1871

Hopkins, G.M.

Various Regions and Cities in Pennsylvania.

1956

Shell Oil Company

Berks County, Pennsylvania, An Historical Map.

1947

Dunkelberger, Ralph D.

Various Regions and Cities in the Middle Atlantic States.

1956

Shell Oil Company