Websites: INNAV (Canadian Coast Guard), Port of Montreal, Great Lakes St.Lawrence Seaway System. Acknowledgements James Bartke, Raynald Dallaire, Malcolm Mackay, Yuna Milli and the lates George Ayoub, Dan McCormick and Albert Schelling. Cover photo: French Line CHICAGO in the Eisenhower Lock, September 14, 1968. Photo by the author. Flag codes