This paper has taken me several moons to complete. No small part of this was the weeks of research, the various psychological breaks, and the acquisition of proper food for my new pet (and several nose plugs for myself). Finally, after all this time, I am confident that I have found the correct answer. Once this is published, I will present my findings to the Princesses, and finally hear the truth from the mouths of Celestia and Luna themselves.
Of course, if I’m right, then it should be just as valid to refer to them by their original names. Loyal readers, I present you with my conclusion. The true names of our Princesses, the two sisters who rose to bring down Discord at his worst, who have maintained harmony as well as Sun and Moon for over a millennium, are as follows:
Whitey and Eleanore