Series consists of ship plans relating to John Clarkson’s position as the Nautical Inspector for Transport Canada. The breakdown of the 14 ship plans is: Island Princess (3), Jefferson (1), PacifiCat Explorer (5), Estevan (2), Stern Wheel Steamer (1), Indianapolis (1), Cheakamus (1).

Cheakamus was converted to a tug-classed British Corporation BS with Freeboard.