Polson Iron WorksKnapp's Roller Boat

No need to write about Knapp's Roller Boat, as there are so many articles and references to it. Try these:

Town of Prescott, Ontario, the birth place of Frederick Knapp, posting

Comment on Ripnet

Toronto Sun article by Mike Filey

Heritage Toronto article

Or buy "Toronto The Way We Were", or "Toronto Sketches" both by Mike Filey.

Photo public domain