Map Lovers’ Monday: Water for City Hall
Annual reports and other documents relating to Philadelphia’s water supply system, 1796-1992
Birch’s Views of Philadelphia, 1800
Buried Treasures No. 1: The Franklin Sugar Refinery
Map Showing Districts, Boroughs & Townships Incorporated in Consolidation of Philadelphia in 1854
Frankford Creek Watershed Historical Timeline
Frankford Creek Watershed in the context of the development of Philadelphia’s sewers and sewage treatment system
Newspaper Clipping Scrapbooks of Frederic Graff Jr.,Chief Engineer of the Philadelphia Water Department: Part 1, 1854-1857
Newspaper Clipping Scrapbooks of Frederick Graff Jr., Chief Engineer of the Philadelphia Water Department. Part 2: 1858-1871
Board of Health Newspaper Clipping Scrapbooks at City Archives of Philadelphia, 1891-1908
