Still on the Map: Poquessing Creek and its Tributaries
Plans and maps of the Pennypack Creek Watershed in Philadelphia
History of Belfield (1934)
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.
Sewers, Pollution, and Public Health in 19th Century Philadelphia
Dock Creek Sewer in 1849: A report on its condition made to City Councils
Drainage and Sewerage Report, 1853
