Actually, the WW&F used a jib crane and small tip cars to load coal on locomotives. The track did go up an embankment to feed coal into the shed, and the tip cars were evidently loaded by hand inside the shed and then pushed outside where they were lifted by the jib crane to be dumped into the tender. There were a couple of tracks down at ground level as well, but I don't think they ever loaded coal directly from the elevated track to the engines.
We might want to consider a platform or bin at about the same height as the side of the coal space, from which a plank could bridge to roll a wheelbarrow across to dump the coal.