No need to write about Knapp's Roller Boat, as there are so many articles and references to it. Try these:
THE WAY WE WERE: Roller Boat more impressive in watercolour than – Toronto Sun article by Mike Filey
Roller Ship – Wikipedia, posting
Historicist: Frederick Knapp's Roller Boat, Torontoist
Knapp's Roller Boat – Toronto Historical Association
Or buy "Toronto The Way We Were", or "Toronto Sketches" both by Mike Filey.
Photo public domain