Army Corps of Engineers 1882 Report on Navigation in Frankford Creek
Thomas Gill Maps of the Schuylkill Navigation, 1827
Map Lovers’ Monday: Schuylkill River from Wissahickon Creek to Norristown, 1913
Map of Philadelphia Harbor, Delaware and Schuylkill, 1912
Old U. S. Navy Yard
Schuylkill River from below the South Street Bridge, 1873
Coal Depot, Richmond, on the Delaware (Picturesque America)
Chestnut Street Bridge, on the Schuylkill River (Picturesque America)
Schuylkill River from below the South Street Bridge, 1873
Frankford Creek Watershed: A historical overview of the Philadelphia section
