This doesn't work for people with suffixes very well, or with the "last name" not being at the end. Back when I was into genealogy a lot, about ten years ago, the "family name" was typically indicated by slashes. So in that format I am "Christopher Mark /Gore/". Your example would be "Ann Beth /Smith Jones/". It also works for people like "James Michael /Smith/ Jr." or "/Kim/ Jong-il" or "/Kim/ Il-Sung".