My problem with
Ruth Mary would be that I'm not keen on the "th-m" transition (though I quite like
Ruth Margaret just for the rhythm and the vibe) but if you like
Ruth Margot I doubt it's that either. For me, both
Ruth Margot and
Margot Ruth flow nicely.
"You can have freedom, or you can have peace. But not both at once."
http://www.behindthename.com/pnl/151927