Lewis Carrol was the pen name for mathematician C. L. Dodgson.  He wrote mathematics books under his own name, but invented his pseudonym by translating his first two names, Charles Lutwidge, into Latin, producing Carolus Lodovicus, which he then Anglicised and reversed in order.

Siobhan Roberts (2006), King of Infinite Space : Donald Coxeter, the Man Who Saved Geometry