As usual, Malcolm, you manage to point to the answer, or at least to the best available information. It looks like Miner's Lifeguard, all appearances to the contrary, probably isn't really a variant of Calon Lan. I'm also embarassed to see, on checking one of the links, that I actually posted to one of the earlier discussions.

Now, the next time you help somebody with a query, do you think you could forego the editorial comments? You have a habit of insulting people at the same as providing information and there is no need for it.