History of Delaware County, Pennsylvania, from the discovery of the territory included within its limits, to the present time. With a notice of the geology of the county, and catalogues of its minerals, plants, quadrupeds, and birds. Written under the direction ... of the Delaware County Institute of Science. (Appendix.)

1862

SMITH, George M.D., of Pennsylvania

10 Lower Delaware.

1888

Vermeule, C. C. (Cornelius Clarkson), 1858-1950

1:63k

Navigation Chart of the Delaware River From Penn's Neck to Philidelphia

1899

C&GS

1:80k

Atlas of New Jersey, Counties of Camden, Salem and Gloucester.

1873

Hopkins, G.M.

1:253k

Delaware Bay, River 3.

1848

Hassler, F. R.

1:80k

Philadelphia and vicinity, Pennsylvania, New Jersey and Delaware / Henry Gannett, chief geographer ; H.M. Wilson, chief geographer in charge ; triangulation by U.S.C. and G.S. ... [et al.] ; topography by Geol. Survey of New Jersey ... [et al.]

1902

Gannett, Henry; Wilson, H. M.; US Coast and Geodetic Survey; Geological Survey of New Jersey

1:63k

Map Of The Vicinity Of Philadelphia

1860

Beers, S.N.

1:63k

Christiana.

1868

Beers, D. G.

1:42k

The historic and scenic Brandywine watershed

1958

Brandywine Valley Association

Delaware, Montgomery, Bucks counties.

1872

Gray, Ormando Willis; Walling, H. F.

1:300k