I just finished replacing some glass in the jalousie on my boler
and I think they're pretty much the same as yours. It was pretty straightforward. The frames remove easily from the window and can be unscrewed and taken apart. If the window seals in the frame are still good you can just replace the glass with similar thickness pieces cut to size from any local glass shop. I replaced mine with tempered glass. If you need or want to replace the seals I got mine from vintagetrailergaskets.com . Robert there was a great help and shipping to Canada was reasonable. Looks like you folks had quite the storm over there!!