As an addition to the threads about Stoke Ferry, Speed Boats, and Trevithick, here's another river topic.
I'm just about old enough to remember the pleasure steamers which operated from near Trent Bridge - I think I went on them as a kid. They were operated by a company called A. J. Whitty who were based near City Ground.
This is one of Whitty's steamers, Empress, on the Trent Bridge to Colwick service. Apparently she took part in the evacuation at Dunkirk and was sunk on her second trip there.
Whitty's boathouse is the one on the extreme right. Note the primitive version of Forest's City