Canine Classics

I only remember one master by name: Commander Lewis, who was ex-Navy and taught Maths and I think a bit of Science. Another whom I can recall in looks but not by name was an elderly man who taught Classics in a small classroom on the attic floor. He had a face like a Basset Hound: very large drooping ears and a thin sagging face and jowls.  He also had a bit of a squint and a very bent index finger. When he pointed at a boy to stand up and answer a question three would get up, uncertain just whom he meant.