I just googled Fennings Wharf. That was about all I could find. Except the Turner painting ("Fire At Fennings Wharf"). Actually, maybe the museum (The Whitworth in Manchester) that has the painting could give you a more accurate location for it?

Quick search again, gives a longer title "At Bermondsey"
http://www.whitworth.manchester.ac.uk/collections/browse/display/index.htm?irn=156&QueryPage=/collections/search/advanced/index.htm