I did this exercise as well - I love to do it every year. I also combined
Madeline with all the other variants, sparking some discussion on my board as to the pronunciation in the US of
Madeline.
Do you also put
Caroline and
Carolyn together?
Do you put
Devon in with
Devin? How about Miya -
Mia or
Maya? And what of
Ciara - do you figure Americans are saying it like
Kiera or
Sierra? :)
I did throw in
Alivia and Alyvia with
Olivia. I think the intention of those namers is clear!