Drawing Dock Creek
Indoor plumbing in mid-19th century Philadelphia
Dock Creek Sewer in 1849: A report on its condition made to City Councils
Plan and profile of proposed Delaware Seventh St. Sewer, 1850
Wooden Water Pipe, removed from Market Street, December 6, 1901
The Water Works in Centre Square, Philadelphia
Outline Map of the County and City of Philadelphia and Vicinity, 1883
Benezet House, Clarke’s Hall, and Chestnut St. Bridge (Watson’s Annals)