Map Lovers’ Monday: Schuylkill River from Wissahickon Creek to Norristown, 1913
Thomas Mill Covered Bridge over Wissahickon Creek (Picturesque America)
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Report on channelization of Frankford Creek for flood control (1947)
Frankford Creek Watershed Historical Timeline
Drawing Dock Creek
Requiem for a stream: Adams Run in Oak Lane
Cobbs Creek: A Brief Historical Overview by Adam Levine
High Water: Flooding in Philadelphia