Overbrook, as it was. A brief history of the Overbrook neighborhood of Philadelphia, focusing on changes in the natural landscape.
Newspaper Clipping Scrapbooks of Frederick Graff Jr., Chief Engineer of the Philadelphia Water Department. Part 2: 1858-1871
Cobbs Creek in the Days of the Old Powder Mill
1882 Report from the Army Corps of Engineers on Navigation in Frankford Creek, Philadelphia
Requiem for a stream: Still House Run in Manayunk
Leverington Avenue Stormwater Sewer
Filling Low Land: A Story of Ash-Dumping in the Wingohocking Creek Watershed
The Manayunk Expressway
Delaware River Harbor Police Report, 1884
Cobbs Creek: A Brief Historical Overview by Adam Levine
