I think it's called Betty because Betty is one of my all-time favorite names that is fun to say. Remember on Lavern & Shirley when Lavern got on the loud speaker when they were working in a kitchen (I think) and kept calling Shirley, "Betty please... Betty please... Boy that's really a longshot to get that one right. But it was a fun memory.
and here's the winner of the 7 American Jane Fairy Tale Friends layer cake squares: