Ghost signs in Montreal, Canada, are an interesting category, due to the bilingual nature of the city and wider region of Quebec. This idiosyncracy has been covered in ‘Sur les murs‘ by Réjane Bougé. (Lovely photographs, contemporary and archival, but sadly the text is only in French!).
John Toohey has been documenting some of the finest examples in Montreal and kindly sent me a link to his collection, alongside a couple that he has captured in Ottawa, to the West. I’ve shared a handful here, and recommend a visit to his site, and here for more Canadian ghost signs.