Ghosts of Water in Fairmount Park, Part II, with Adam Levine
Early photographs of Fairmount and vicinity, 1848
Early visions of Philadelphia’s airport
Frankford Creek Watershed: A historical overview of the Philadelphia section
Report on channelization of Frankford Creek for flood control (1947)
Frankford Creek Watershed Historical Timeline
Two Frankford Creek Bridges, 1896-1899
Overbrook, as it was. A brief history of the Overbrook neighborhood of Philadelphia, focusing on changes in the natural landscape.
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
