Jim and Dale, yes, very interesting about all this. Jim, I’m with you that it would have been far easier to cut down the diameter of the wheels and make adjustment to them than re-doing all the machinery. Another thing I had thought of was that raising the wheels might also affect clearance in the wheel houses.

Now as to terminology, y’all are right that terms do change and what we would consider today to be proper (and for those “in the know” writing about that) may very well change, too. A good “for instance” are some of today’s terms: they used to call the kitchen a “cookhouse”; today of you called it a cookhouse you’d get a blank stare...everyone knows that’s the galley. On towboats we all the propellers “wheels”, so things do change. Interesting mystery!