 
		 
		 
		Frankford Creek Watershed: A historical overview of the Philadelphia section
 
		Frankford Creek Watershed Historical Timeline
 
		Overbrook, as it was. A brief history of the Overbrook neighborhood of Philadelphia, focusing on changes in the natural landscape.
 
		Newspaper Clipping Scrapbooks of Frederic Graff Jr.,Chief Engineer of the Philadelphia Water Department: Part 1, 1854-1857
 
		Newspaper Clipping Scrapbooks of Frederick Graff Jr., Chief Engineer of the Philadelphia Water Department. Part 2: 1858-1871
 
		Requiem for a stream: Still House Run in Manayunk
 
		Leverington Avenue Stormwater Sewer
 
		Visions of the Schuylkill, 1884 and Now
 
		Aramingo Canal, Then and Now
 
		The Sad History of Frankford Creek
