Of course I've heard of this, Jo--thank you! My goodness, the things I learn on this board. I never even knew (or had completely forgotten, if I had) that Rhodesia was named after anybody, let alone that there was a connection to Rhodes scholars. I had heard of the Kimberly diamond mines, though. I notice that one the first Trustees of the scholarship was Earl Grey. Was that the tea manufacturer?
I do actually like "Earl Grey, hot" (hi, l-head!), the only hot tea I've ever found palatable.