 
		 
		 
		Frankford Creek Watershed: A historical overview of the Philadelphia section
 
		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
 
		CITIZENS’ BUSINESS: 1939-1946
 
		Petition of manufacturers along the Schuylkill River in Philadelphia for a new upstream water supply, 1868
