Map of Philadelphia Harbor, Delaware and Schuylkill, 1912
Schuylkill River from below the South Street Bridge, 1873
Schuylkill River from below the South Street Bridge, 1873
Frankford Creek Watershed: A historical overview of the Philadelphia section
Frankford Creek Watershed Historical Timeline
Drawing Dock Creek
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
A Tour of Philadelphia’s Delaware River Waterfront in 1876