There was a duscussion on this wa-a-a-y back in 2003. See
http://www.corfid.com/cgi-bin/ubb/ul...c;f=1;t=001459 for the whole thing, but my original answer was:
Just had one of those 'aha!' moments when, looking for something else, I came across an article on Wayne Francis' site. It's the cover story from Maclean's magazine, September 1968, written by Marjorie Harris. She's describing a road trip of Gord's to a concert in Alliston, Ontario. A few paragraphs down, this jumped out at me:
"A few weeks ago I was in the Princess Hotel in Edinburgh, Scotland. I met a girl named Marie Christine Dupuis. She couldn't speak English, and being a Canadian I couldn't speak word of French. We spent five lovely hours together. This song is about a woman compared to a ship. It is definately [sic]ahead of its time."
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See the link for the whole thing.