Ghosts of Water in Fairmount Park, Part 1, with Adam Levine
Sandy Run Watershed and the Holmesburg Water Works
Roberts Mill, Wingohocking Creek, 1871
Fairmount Park topographical map, showing East Park Reservoir, 1872
Schuylkill River Hydrographical Survey 1861-66 by H. P. M. Birkinbine
Duplex Pumping Engine, Belmont Works
View of Fairmount Water Works, ca. 1827