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).

Built by Albion Iron Works. The company was founded in 1865 by Joseph Spratt and operated until 1928.