Song's links provided much, much help, and I'm confused why they didn't pop up in my earlier searches!

And I'm afraid there's no good resource for Lewis-style naming, like Pattertwig or Glimfeather. I did try out a couple of Narnia name generators, and input my real name to see what the results would be like. One suggested "Susan Pevensie" and the other "Susan." Real original there, guys...