Thomas Mill Covered Bridge over Wissahickon Creek (Picturesque America)
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Requiem for a stream: Adams Run in Oak Lane
Cobbs Creek: A Brief Historical Overview by Adam Levine
High Water: Flooding in Philadelphia
Images from ‘The Water Supply of the City of Philadelphia by a proposed Aqueduct from Norristown Dam’
Fairmount Gardens with the Schuylkill Bridge, 1839
Frankford Creek: Sad History of an Urban Stream title page
Leslie’s Illustrated Newspaper, Schuylkill Flood 1869