Girls:
Cordelia Rae and
Rose BenedictaBoys:
David Bertram and
Douglas AlgernonGirl/Boy:
Cordelia Rae and
David Bertram
If I had to give them only one name, however, I would probably choose different names for honoring purposes.
Girls:
Rachel and
RoseBoys:
Robert and
DouglasGirl/Boy:
Douglas and
Rose