You might also contact the Welsh Folk Museum at St. Fagan's (hope I have both
the names right!), just outside Cardiff; they have examples of buildings from
many periods throughout Welsh history, though interiors are generally barren.
Nonetheless, they have have information on furnishings and if the Welsh
emigrant tie to Wales is as strong as has been suggested, you might get some
useful information. I can't think of any Canadian sources that might be
helpful.

Harry Needham
Canadian War Museum