Grain was still loaded in box car when I started with CN in 1965.... We switched the Elevators at Midland and Collingwood Ontario on the great Lakes (actually Georgian bay).
It wasn't long after 1965 .. Cylindrical hoppers replaced the Box car.( late 60s or early 70s). A engineman had his hands full handling a 125 cylindrical loaded grain train on the territory I worked. ( roughly 12 thousand tons)
The Car dept would sweep out the box car and install card board across the door ways... When loading the elevator would weigh and send the grain down the chute into the box car in about 2 minutes.
Unfortunately most of the elevators are now completely gone... Midland and Owen Sound Ontario are still operational. Collingwood is still standing .
