American posh to me is David Ogden Stiers or Kelsie Grammar.
Any villain from an 80s movie about a ski lodge going out of business that can only be saved by a fraternity racing down deadmans bluff...
I suppose Kate has elements of Hepburn?
besides, there's no such thing as old money in the Federation.
Becasue there's isn't any money.
In the beginning, she did have princess hair.