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History of Belfield (1934)
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Frankford Creek Watershed Historical Timeline
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Drawing Dock Creek
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Overbrook, as it was. A brief history of the Overbrook neighborhood of Philadelphia, focusing on changes in the natural landscape.
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Sewers, Pollution, and Public Health in 19th Century Philadelphia
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Dock Creek Sewer in 1849: A report on its condition made to City Councils
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Drainage and Sewerage Report, 1853
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