Queen Lane Water Works (1894)
Torresdale Water Works (1907)
Belmont Works (1870)
Roxborough Works (1869)
The Water Works of the City of Philadelphia. The Story of their Development and Engineering Specifications.
The Water and Drainage History of Philadelphia: A seven-part course
Isometrical View of Fairmount Water Works, 1843
Torresdale Conduit work gang, 12/18/1906
Finished Upper Roxborough filters, 1903
Upper Roxborough filter beds under construction, July 1902
