Help completing sibset

[name]Hi[/name], I was after some help naming triplets.
We already have two sons, [name]Felix[/name] and [name]Sebastian[/name]. We are leaning towards naming two of the triplets [name]Theodore[/name] and [name]Coraline[/name] (or [name]Coralie[/name]), but are stuck on the third.
We don’t know if the third baby is a boy or a girl. What names would you suggest to fit in with the other names?

[name]Felix[/name], [name]Sebastian[/name], [name]Theodore[/name], [name]Coraline[/name] (or [name]Coralie[/name]), and . . .

Girl:
[name]Helena[/name]
[name]Margot[/name]
[name]Rosalind[/name]
[name]Lydia[/name]
[name]Penelope[/name]

Boy:
[name]Oliver[/name]
[name]Owen[/name]
[name]William[/name]
[name]Henry[/name]
[name]Julian[/name]
[name]Quinn[/name]

Also, it occurs to me that this is a good task for Nymbler since you already have so many names established: http://www.nymbler.com/