Frankford Creek Watershed Historical Timeline
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
Sewers, Pollution, and Public Health in 19th Century Philadelphia
CITIZENS’ BUSINESS: 1939-1946
Petition of manufacturers along the Schuylkill River in Philadelphia for a new upstream water supply, 1868
