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
Beauty from Utility: The Architect of the Southwest Sewage Pumping Station
From Creek To Sewer
Three reports on Philadelphia’s Sewage Treatment Project, 1911-1914
Half a Century of Clean Water: The Clean Water Act, 1972-2022
“Philadelphia Underground,” Jan. 29, 1961
Color Diagram of Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia