A friend of mine used to be the Diving Officer in HMS BEAVER.
Pere Artist, who had a sheltered upbringing in Bolton during the war, joined Dartmouth in 1947. I think he had an occasional role sitting on the Ships' Naming Committee while in the MoD in the mid/late-70s and I'm pretty sure he thought up the name as I remember him mentioning it (I'd have been about thirteen at the time).
To be fair it was a committee decision, not his alone