 
		 
		 
		Roberts Mill, Wingohocking Creek, 1871
 
		History of Belfield (1934)
 
		Frankford Creek Watershed: A historical overview of the Philadelphia section
 
		Report on channelization of Frankford Creek for flood control (1947)
 
		Frankford Creek Watershed Historical Timeline
 
		Drawing Dock Creek
 
		Overbrook, as it was. A brief history of the Overbrook neighborhood of Philadelphia, focusing on changes in the natural landscape.
 
		Leverington Avenue Stormwater Sewer
 
		The Schuylkill and Wissahickon banks in 1858
 
		Manayunk and the Schuylkill Navigation
