Thanks for the info. I've never seen CANADA shoulder titles worn in this manner on any other Canadian soldier. In the photo it looks like the badge says CANA or some such. Maybe it's just light diffusion obscuring the individual letters.
This is a later photo from the one in the opening post. D'Artois is now a Captain and is wearing two decorations. Sonia is wearing a Canadian uniform rather that the uniform of the British FANY. This might have been taken post-war.
I'm also looking at D'Artois' buttons. Are they PPCLI or is that a General Service pattern?