Sorry to have omitted the link to Canadian folklore sources. Here 'tis:

http://www.loc.gov/folklife/source/canada.html

These should also include much material on English-language stuff like lumberjack songs as well as the French voyageur songs.

You might also check sources for songs of the Great Lakes region.

And don't miss the French Canadian dialect songs, nominally in English, like "On Meesh-e-gan," which Lomax reprints.

Bob