I have known two guys named "Rao", but it always seems to be a first-name ELEMENT (as in "Ramarao") or a last name, not a first name by itself. I believe it's in the Telugu language of India.
"Rulon" sounds like some 50-year-old Mormon militia dude who lives in the boonies of southwest Utah with his four wives and 22 children. Or maybe the
Davis Mountains of west Texas. Am I close?