You would not have wanted to drink it: Philadelphia’s water supply in 1884
Frankford Creek Watershed: A historical overview of the Philadelphia section
Frankford Creek Watershed Historical Timeline
Down Under III: A walk in the Dobson’s Run Storm Relief Sewer, June 15, 2010
Requiem for a stream: A brief history of Dobson’s Run
Drawing Dock Creek
Down Under, Part 2: Beaver Creek as it appears today
Newspaper Clipping Scrapbooks of Frederic Graff Jr.,Chief Engineer of the Philadelphia Water Department: Part 1, 1854-1857
Board of Health Newspaper Clipping Scrapbooks at City Archives of Philadelphia, 1891-1908
Typhoid Fever and sewage tainted drinking water: An 1889 report from the Philadelphia Board of Health
