how about Michaelangelo or Mozart? Altho, not in the letter category but a few more suggestions could be, Plato, Aristole, Nostradamous, Darwin, Einstein (these are Very Intellegent Dogs... all of these would be a fitting name).
I like Libby for a girl... Girls I am partial to OLD Fashion names. (Abby, Libby, Gretta, Annabella, Gerty, Mabel, Constantine just to name a few).
Good luck with your new baby. I'm sure he will bring you many many years of love, joy and companionship
Annie - fawn female black masked
Hazel - brindle female white collared